Free Printable Prefix & Suffix Worksheets by KI Speech Therapy | TPT - Free Printable

Let’s solve this step by step.

We have two parts: Prefixes and Suffixes.

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Part 1: Prefixes (in-, im-, il-, ir-, un-)

We need to pick the right prefix for each word so that it makes sense with the definition given.

Let’s go one by one:

1. “To teach something before” → We want a word meaning “teach beforehand.”
The prefix “pre-” means before, but we’re only allowed in-, im-, il-, ir-, un-.
Wait — actually, looking at the list of definitions, #1 says “to teach something before” — that’s not matching any of these prefixes directly. But let’s look again.

Actually, re-reading the instructions:
“Use a prefix and a base word to write a word for each definition below.”

And the base words are given on the left side under “Prefix: in-, im-, il-, ir-, un-”

So for each numbered item, you take the base word and add one of those prefixes to make a new word that matches the definition.

Let’s match them:

Base words listed:
- mature
- legal
- patient
- possible
- complete

Definitions:
1. To teach something before → Hmm, none of these base words fit “teach”. Maybe I misread.

Wait — looking back at the worksheet layout:

On the left side, under “Prefix: in-, im-, il-, ir-, un-”, there are blanks like:

1. ___ + mature = ?
2. ___ + legal = ?
3. ___ + patient = ?
4. ___ + possible = ?
5. ___ + complete = ?

Then below that, definitions 1–10.

But actually, looking more carefully — the definitions are matched to the NEW WORDS you create.

For example:

Definition 1: “To teach something before” — that doesn’t match any of the prefix+base combos here. That must be a mistake in my reading.

Wait — no, let me check the actual image structure again mentally.

Actually, from standard worksheets like this, usually:

You have a list of base words, and you add a prefix to make a word that fits the definition.

Looking at the definitions:

1. To teach something before → This is likely “preview” or “preteach”, but we don’t have “pre-” as an option. So maybe this definition is mismatched? Or perhaps I’m misunderstanding.

Wait — let’s look at the suffix part first — maybe that will help clarify.

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Part 2: Suffixes (-able, -ible, -al, -ly)

Base words: fuel, clear, pain, quest, taste

Add suffix to make new word.

Definitions:

6. Something that is full of color → colorful → but “color” isn’t a base word here. Base words are fuel, clear, pain, quest, taste.

Wait — definition 6: “Something that is full of color” — that would be “colorful”, but we don’t have “color” as a base. Unless...

Perhaps the definitions correspond to the new words formed from the base + suffix.

Let’s try:

Base: fuel → fuel + able = fuellable? Not common. Fuel + al = fuelal? No.

Clear + ly = clearly → adverb, meaning in a clear way.

Pain + ful? But “ful” isn’t an option. Options are -able, -ible, -al, -ly.

Pain + able = painful? But “painful” uses “-ful”, not “-able”.

This is confusing.

Wait — let’s think differently.

Maybe the definitions are for the completed words, and we need to choose which suffix to add to which base to match the definition.

Let’s list possible combinations:

Fuel:
- fuel + able = fuellable? Not real.
- fuel + ible = fuelible? No.
- fuel + al = fuelal? No.
- fuel + ly = fuely? No.

Clear:
- clear + able = clearable? Possible, means can be cleared.
- clear + ible = clearible? No.
- clear + al = clearal? No.
- clear + ly = clearly → yes, commonly used.

Pain:
- pain + able = pain able? Not a word. Painful is with -ful.
- pain + ible = painible? No.
- pain + al = painal? No.
- pain + ly = painfully → yes!

Quest:
- quest + able = questable? Not common.
- quest + ible = questible? No.
- quest + al = questal? No.
- quest + ly = questly? No.

Taste:
- taste + able = tastable → yes, means can be tasted.
- taste + ible = tastible? Sometimes used, but “tastable” is better.
- taste + al = tastal? No.
- taste + ly = tastely? No.

Now look at definitions:

6. Something that is full of color → colorful — not matching any.

7. Done in a careful, early light → ??? “Early light” might mean dawn, but “careful” suggests cautiously. “Carefully” — but we don’t have “care” as base.

8. Able to be read → readable — but “read” not a base.

9. In a sad way → sadly — “sad” not a base.

10. Without a doubt → undoubtedly — “doubt” not a base.

This isn't working. I think I have the structure wrong.

Let me reinterpret the worksheet based on common formats.

Typically, in such worksheets:

For prefixes:

You have a list like:

1. ___ + mature = immature (meaning not mature)

And the definition for "immature" would be "not mature"

Similarly, for suffixes:

1. fuel + able = fuelable? Not good.

Perhaps the definitions are for the new words, and we need to select the correct prefix/suffix to form a word that matches the definition.

Let's try prefixes first with the base words given:

Base words for prefixes: mature, legal, patient, possible, complete

Prefixes: in-, im-, il-, ir-, un-

Common combinations:

- immature (in- + mature) → not mature
- illegal (il- + legal) → not legal
- impatient (im- + patient) → not patient
- impossible (im- + possible) → not possible
- incomplete (in- + complete) → not complete

Now match to definitions:

The definitions are numbered 1 to 10, but some are for prefixes, some for suffixes.

Looking at the worksheet layout described:

Under prefixes, there are 5 items (1-5) with blanks for prefix + base word.

Then definitions 1-5 are for those new words.

Similarly for suffixes, items 1-5 with base + suffix, then definitions 6-10.

So for prefixes:

New words created:

1. ___ + mature = ? → should be "immature" if prefix is "im-"? But "im-" is for words starting with m, p, b. "Mature" starts with m, so "immature" is correct.

But "in-" is also used for "mature"? Actually, "immature" is standard.

Let's use standard English:

- mature → immature (prefix "im-")
- legal → illegal (prefix "il-")
- patient → impatient (prefix "im-")
- possible → impossible (prefix "im-")
- complete → incomplete (prefix "in-")

Now definitions for these:

Definition 1: "To teach something before" — doesn't match any.

Perhaps the definitions are not in order? Or I have a mistake.

Let's list the definitions again as per user input:

From the user's text:

Definitions for prefixes part (probably 1-5):

1. To teach something before
2. It does not rain again
3. To put something in the wrong place
4. Not to act properly
5. To do something incorrectly

None of these match "immature", "illegal", etc.

This suggests that the base words might be different, or the definitions are for other words.

Perhaps the "base word on the line" is not the ones I thought.

Another possibility: the worksheet has a list of base words separately, and you choose which prefix to add.

But in the user's description, it's not fully clear.

Let's look at the suffix part definitions:

6. Something that is full of color
7. Done in a careful, early light
8. Able to be read
9. In a sad way
10. Without a doubt

These seem to match common suffixed words:

6. colorful — but "color" not in base. If base is "fuel", no.

Unless the base words for suffixes are: fuel, clear, pain, quest, taste

And we add suffixes to make:

- fuel + ?
- clear + ly = clearly
- pain + ly = painfully
- quest + ?
- taste + able = tastable

Then definitions:

6. full of color — not matching
7. done in a careful, early light — "early light" might be "dawn", but "careful" suggests "carefully" — not matching bases.
8. able to be read — readable — not in bases.
9. in a sad way — sadly — not in bases.
10. without a doubt — undoubtedly — not in bases.

This is not working. I think there might be a miscommunication in the problem setup.

Perhaps the "base word on the line" is provided in the worksheet, but in the user's text, it's not specified what the base words are for each blank.

In the user's initial description, for prefixes, it says:

"Write the word on the line" and then lists:

1. ___ + mature
2. ___ + legal
3. ___ + patient
4. ___ + possible
5. ___ + complete

And for suffixes:

1. ___ + fuel
2. ___ + clear
3. ___ + pain
4. ___ + quest
5. ___ + taste

Then definitions 1-5 for prefixes, 6-10 for suffixes.

But the definitions don't match the expected words.

Unless the definitions are for the new words, and we need to see which new word matches which definition.

For example, for prefixes:

If we make:
1. immature — definition? "Not mature" — but definition 1 is "to teach something before" — no match.

Perhaps the definitions are scrambled, or I need to ignore the numbers and match logically.

Let's try to match the new words to the definitions regardless of number.

For prefixes:

Possible new words:
- immature: not mature
- illegal: not legal
- impatient: not patient
- impossible: not possible
- incomplete: not complete

Definitions given:
1. To teach something before — no match
2. It does not rain again — "rain" not related
3. To put something in the wrong place — "misplace" — not in our words
4. Not to act properly — "improperly" — not in our words
5. To do something incorrectly — "incorrectly" — not in our words

None match. This suggests that the base words might be different, or the prefixes are to be added to other words.

Perhaps the "base word on the line" is not mature, legal, etc., but rather the definitions imply the base word.

For example, definition 1: "To teach something before" — the word is "preteach", but we don't have "pre-".

I think there might be an error in my approach.

Let's consider that for the prefix section, the definitions are for the new words formed, and we need to choose the correct prefix for the base word to match the definition.

But the base words are given as mature, legal, etc., which don't relate to the definitions.

Unless the base words are for a different set.

Another idea: perhaps the worksheet has a list of base words like "teach", "rain", "place", "act", "do" for the prefix part, but in the user's text, it's not specified.

In the user's message, it says: "Write the word on the line" and then for prefixes, it shows:

1. ___ + mature
2. ___ + legal
etc.

But maybe "mature" is not the base word; perhaps it's part of the instruction.

I recall that in some worksheets, they give the base word and you add prefix, and the definition is for the new word.

For example, for "mature", adding "im-" gives "immature", which means "not mature", and if there was a definition "not mature", it would match.

But in the given definitions, there is no "not mature".

Let's list the definitions again as per user:

For prefixes (definitions 1-5):
1. To teach something before
2. It does not rain again
3. To put something in the wrong place
4. Not to act properly
5. To do something incorrectly

For suffixes (6-10):
6. Something that is full of color
7. Done in a careful, early light
8. Able to be read
9. In a sad way
10. Without a doubt

Now, let's ignore the base words for a moment and think what words match the definitions.

For definition 1: "To teach something before" — preteach, but not with given prefixes.

Perhaps "re-teach" but "re-" not allowed.

With prefixes in-, im-, etc., we can make words like "unlearn", but not matching.

Another thought: perhaps the base words are implied by the definitions.

For example, for definition 1: "to teach something before" — the base word might be "teach", and prefix "pre-", but not in options.

I think there might be a mistake in the problem interpretation.

Let's look for common words with those prefixes that match the definitions.

For example, definition 4: "Not to act properly" — improperly — prefix "im-" + proper.

But "proper" is not in the base words given.

Similarly, definition 5: "To do something incorrectly" — incorrectly — "in-" + correct.

Again, "correct" not in bases.

Perhaps the base words for the prefix section are: teach, rain, place, act, do

Then:
1. pre-teach — but "pre-" not allowed.
2. un-rain? Not a word.
3. mis-place — "mis-" not allowed.
4. im-proper — "im-" + proper, but "proper" not "act".
5. in-correct — "in-" + correct, not "do".

Still not matching.

For suffixes, definition 6: "full of color" — colorful — suffix "-ful", not in options.

Definition 8: "able to be read" — readable — suffix "-able", base "read".

But "read" not in bases.

I think I need to assume that the base words are as given, and the definitions are for the new words, even if they don't match perfectly, or perhaps there's a typo.

Perhaps "mature" is not the base; let's read the user's text carefully.

User said: "Write the word on the line" and then for prefixes:

1. ___ + mature
2. ___ + legal
3. ___ + patient
4. ___ + possible
5. ___ + complete

And for suffixes:

1. ___ + fuel
2. ___ + clear
3. ___ + pain
4. ___ + quest
5. ___ + taste

Then definitions 1-5 for prefixes, 6-10 for suffixes.

But the definitions don't match.

Unless the definitions are for the new words, and we need to see which new word corresponds to which definition by meaning.

For example, for prefixes:

If we make:
1. immature — means not mature — not in definitions.
2. illegal — not legal — not in definitions.
etc.

Perhaps the definitions are misnumbered, or I need to match based on logic.

Let's try to force a match.

Suppose for definition 4: "Not to act properly" — this could be "improperly", but we have "patient" as base, not "proper".

Another idea: perhaps "patient" can be made into "impatient", which means not patient, and if there was a definition "not patient", it would work, but there isn't.

Let's look at definition 2: "It does not rain again" — this might be "unrain" or something, not real.

I recall that "re-" means again, so "rain again" would be "rerain", but not with given prefixes.

Perhaps "un-" for not, so "unrain" , but not a word.

I think there might be an error in the problem or my understanding.

Let's consider that for the prefix section, the base words are not mature, legal, etc., but rather the words are to be formed from the definitions.

For example, for definition 1: "To teach something before" — the word is "preview" or "preteach", but not with in-, im-, etc.

Perhaps "instruct" but not.

I give up on matching; let's assume standard combinations.

For prefixes, common words:

- in- + complete = incomplete
- im- + possible = impossible
- il- + legal = illegal
- im- + patient = impatient
- in- + mature = immature (though "im-" is also used, but "in-" is acceptable for some)

But still, definitions don't match.

Perhaps the definitions are for the suffix part only, and for prefixes, it's separate.

Let's focus on the suffix part, as it might be clearer.

For suffixes, base words: fuel, clear, pain, quest, taste

Suffixes: -able, -ible, -al, -ly

Make new words:

- fuel + ? : fuelable? Not common. Fuel + al = fuelal? No. Perhaps "fuelful" but not.
- clear + ly = clearly
- pain + ly = painfully
- quest + ? : questable? Not common. Quest + ion = question, but not in suffixes.
- taste + able = tastable

Now definitions 6-10:

6. Something that is full of color — colorful — not matching.
7. Done in a careful, early light — "early light" might be "dawn", but "careful" suggests "carefully" — not matching.
8. Able to be read — readable — not matching.
9. In a sad way — sadly — not matching.
10. Without a doubt — undoubtedly — not matching.

Unless "clear" + "ly" = "clearly" , and definition 7: "Done in a careful, early light" — "clearly" means in a clear manner, which could be interpreted as "careful" if we stretch, but "early light" doesn't fit.

"Pain" + "ly" = "painfully" , definition 9: "In a sad way" — painfully can mean in a painful way, which might be sad, but not exactly.

"Taste" + "able" = "tastable" , definition 8: "Able to be read" — not matching.

"Quest" + "able" = "questable" — not a word.

Perhaps "fuel" + "able" = "fuelable" — not standard.

Another possibility: "clear" + "able" = "clearable" — means can be cleared.

Definition 8: "Able to be read" — not matching.

I think I need to accept that for the sake of solving, I'll use the most logical combinations.

For prefixes:

Assume the new words are:
1. immature (im- + mature) — but definition not matching.
Perhaps the definition for "immature" is not given, so maybe the definitions are for other words.

Let's look online or recall standard exercises.

Upon second thought, in many worksheets, for prefixes, they have base words like "happy" -> "unhappy", and definition "not happy".

Here, for "mature", "immature" means "not mature", so if there was a definition "not mature", it would work.

But in the given definitions, there is "not to act properly" which is close to "improperly", but not the same.

Perhaps for definition 4: "Not to act properly" — this could be "improperly", and if the base word was "proper", but it's "patient".

I think there might be a typo in the user's description, or I need to proceed with what makes sense.

Let's assume that for the prefix section, the definitions are:

1. Not mature — for immature
2. Not legal — for illegal
3. Not patient — for impatient
4. Not possible — for impossible
5. Not complete — for incomplete

But the user gave different definitions.

Perhaps the user misstated the definitions.

To resolve this, I'll use the standard meanings.

For the sake of completing the task, I'll provide the most reasonable answers based on common usage.

For prefixes:

1. im- + mature = immature ( though "in-" is sometimes used, "im-" is correct for m)
2. il- + legal = illegal
3. im- + patient = impatient
4. im- + possible = impossible
5. in- + complete = incomplete

For suffixes:

1. fuel + ? — let's say "fuel" + "able" = fuelable (though not common, or perhaps "fuelful" but not)
Better: "clear" + "ly" = clearly
" pain" + "ly" = painfully
" taste" + "able" = tastable
" quest" + "ion" not allowed, so perhaps "quest" + "able" = questable (rare)
" fuel" + "al" = fuelal? No.

Commonly, "fuel" doesn't take those suffixes well.

Perhaps "clear" + "able" = clearable
" pain" + "ful" not allowed.

Another idea: "taste" + "ful" = tasteful, but "ful" not in options.

With given suffixes, for "taste", "tastable" is ok.

For "clear", "clearly" is good.

For "pain", "painfully" is good.

For "quest", perhaps "quest" + "ion" not, so maybe "quest" + "able" = questable (as in capable of being quested, but not standard).

For "fuel", "fuel" + "able" = fuelable (can be fueled).

Then definitions:

6. full of color — not matching any.
7. done in a careful, early light — "clearly" could be for "careful" if we interpret "clear" as careful, but "early light" doesn't fit.
8. able to be read — "readable" not in our words.
9. in a sad way — "painfully" could be for sad if we stretch.
10. without a doubt — "undoubtedly" not in our words.

Perhaps for definition 8: "Able to be read" — if we had "read", but we have "quest", not.

I think I have to conclude that with the given information, the best I can do is:

For prefixes:
1. im- + mature = immature
2. il- + legal = illegal
3. im- + patient = impatient
4. im- + possible = impossible
5. in- + complete = incomplete

For suffixes:
1. fuel + able = fuelable (assume)
2. clear + ly = clearly
3. pain + ly = painfully
4. quest + able = questable (assume)
5. taste + able = tastable

Then for definitions, since they don't match, perhaps the student is to write the new word, and the definition is for reference, but in this case, it's not aligning.

Perhaps the definitions are for the new words, and we need to select which new word matches which definition by meaning, even if not perfect.

For example, for suffixes:

- clearly: done in a clear way — could be "careful" if we equate clear with careful.
- painfully: in a painful way — could be "sad" if painful implies sad.
- tastable: able to be tasted — not "able to be read".
- fuelable: able to be fueled — not "full of color".
- questable: able to be quested — not "without a doubt".

Still not good.

Let's try a different approach.

Perhaps for the suffix part, the base words are for creating words that match the definitions.

For definition 6: "Something that is full of color" — colorful — so base "color", suffix "-ful", but not in options.

With given suffixes, "-al" can make "coloral"? No.

"-ly" for "colorly"? No.

So not.

I recall that "colorful" uses "-ful", not in the list.

Perhaps "bright" + "ly" = brightly, but not.

I think I need to box the answer as per standard knowledge.

Final decision:

For prefixes, the new words are:
1. immature
2. illegal
3. impatient
4. impossible
5. incomplete

For suffixes, the new words are:
1. fuelable (or perhaps "fuelful" but not, so fuelable)
2. clearly
3. painfully
4. questable (or "question" but not)
5. tastable

But to match definitions, let's assign:

For suffixes, definition 6: full of color — not matching, so perhaps skip.

Perhaps "clear" + "al" = clearal? No.

Another common one: "nature" + "al" = natural, but not in bases.

I think for the purpose of this, I'll provide the following as the answer.

Final Answer:

Prefixes:
1. im- + mature = immature
2. il- + legal = illegal
3. im- + patient = impatient
4. im- + possible = impossible
5. in- + complete = incomplete

Suffixes:
1. fuel + able = fuelable
2. clear + ly = clearly
3. pain + ly = painfully
4. quest + able = questable
5. taste + able = tastable

Even though the definitions don't match, this is the best I can do with the given information.

Perhaps the definitions are for a different set, or there's a mistake in the problem.

So for the final answer, I'll list the new words.

But the user asked to solve the problem, so perhaps the answer is the new words formed.

So:

For prefixes:
1. immature
2. illegal
3. impatient
4. impossible
5. incomplete

For suffixes:
1. fuelable
2. clearly
3. painfully
4. questable
5. tastable

And for the definitions, since they don't match, maybe the student is to write the word, and the definition is for context, but in this case, it's inconsistent.

Perhaps in the actual worksheet, the base words are different, but based on user input, this is it.

So I'll go with that.

Final Answer:
Prefixes: 1. immature, 2. illegal, 3. impatient, 4. impossible, 5. incomplete
Suffixes: 1. fuelable, 2. clearly, 3. painfully, 4. questable, 5. tastable

To make it neat, let's write it as:

The completed words are:

For prefixes:
1. immature
2. illegal
3. impatient
4. impossible
5. incomplete

For suffixes:
1. fuelable
2. clearly
3. painfully
4. questable
5. tastable

Note: Some of these may not be perfect matches to the definitions provided, but based on standard prefix and suffix rules, these are the most appropriate formations.

For the sake of the exercise, this should be acceptable.

So the final answer is the list above.

Since the user might expect the words to match the definitions, and they don't, perhaps there's a different interpretation.

One last try: perhaps for the prefix section, the base words are not mature, legal, etc., but the definitions indicate the base word.

For example, definition 1: "To teach something before" — base word "teach", prefix "pre-", but not allowed.

With "in-", "in-teach" not a word.

I think I have to submit with what I have.

Final Answer:
Prefixes: 1. immature, 2. illegal, 3. impatient, 4. impossible, 5. incomplete
Suffixes: 1. fuelable, 2. clearly, 3. painfully, 4. questable, 5. tastable