Auxiliary verbs worksheets | Worsheets library - Free Printable

Let's solve the Auxiliary Verbs Worksheet step by step. This worksheet is designed to help students choose the correct auxiliary verb (also known as a helping verb) for each sentence.

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🔹 What are Auxiliary Verbs?

Auxiliary verbs help the main verb in a sentence. Common auxiliary verbs include:
- is, am, are (present tense of "to be")
- does, do, don’t, doesn’t (for questions and negatives)
- was, were (past tense of "to be")
- have, has, had (perfect tenses)

In this worksheet, we’re focusing on "is/are/am", "does/do", and "don't/doesn't".

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Now, let’s go through each sentence:

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1. Andy ______ working on his homework.

- The verb "working" is present participle → needs an auxiliary verb.
- Subject: Andy (singular)
- Correct auxiliary: is
- ✔ Answer: is

> is working

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2. Samantha ______ make dinner with her grandma.

- This is a negative or question form? No — it’s a statement, but missing auxiliary.
- But wait — "make" is a base verb. If it’s not a question or negative, then we need to see if it’s a present simple sentence.
- However, Samantha is singular, so if it's present simple, we'd use "does" only in questions/negatives.
- But here, the sentence seems to be stating something happening now → present continuous?
- Actually, “make dinner” is an action happening now → present continuous → is making.
- But the blank is before "make", and options are is / am / does / are.
- So likely: Samantha is making dinner...
- ✔ Answer: is

> is make → Wait! That’s incorrect grammar. Should be is making.

But the verb given is "make", not "making".

Wait — this suggests that the sentence might be intended to be present simple.

But "Samantha make" is grammatically wrong unless it's a question or negative.

So perhaps the sentence should be:
👉 Samantha ______ make dinner with her grandma. (as a question?)

But no — it's a statement.

Actually, the verb "make" is base form, so the auxiliary must be does for present simple with third-person singular.

But "Samantha does make dinner..." means she does (indeed) make dinner — which could be correct.

Alternatively, if it's present continuous, it would be is making — but "making" isn't listed.

So the options are: is / am / does / are

Given that "make" is base verb, and subject is Samantha (she), the correct auxiliary for present simple affirmative is does.

But "does make" is used when emphasizing or in negative/interrogative.

But the sentence is neutral: Samantha ______ make dinner...

This is awkward unless it's a question or negative.

Wait — maybe it's meant to be a present simple statement, but it's missing the auxiliary.

But in standard English, we say:
- Samantha makes dinner → "makes" is the full verb.

But here, the structure is:
> Samantha [auxiliary] make...

That implies the auxiliary is does, and the verb is make → Samantha does make dinner → meaning she *does* (in fact) make dinner.

But that's emphatic.

Alternatively, if it's present continuous, we’d need is making, but "making" isn't an option.

So likely, the intended answer is does, to form "Samantha does make dinner..." — though unusual.

But let’s check the context.

Looking at other sentences, many are questions or negatives.

But this one is not marked as a question.

Wait — perhaps the sentence is meant to be "Samantha is making dinner...", but the verb is written as "make" instead of "making".

That’s a typo.

But since we have to work with what’s given, and the verb is "make", and the subject is Samantha (third person singular), the only auxiliary that fits with base verb is does.

So:
> Samantha does make dinner with her grandma.

✔ Answer: does

(Though more natural would be "makes" without auxiliary.)

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3. The friends ______ going to South Carolina. (is / am / does / are)

- Subject: The friends → plural
- Verb: going → present participle → needs auxiliary for present continuous
- Plural → are
- ✔ Answer: are

> are going

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4. ______ your dad work in this building? (is / am / does / are)

- Subject: your dad → third person singular
- Verb: work → base verb
- This is a question → so auxiliary needed
- Present simple question → Does + subject + verb?
- Yes: Does your dad work...?
- ✔ Answer: does

> Does your dad work in this building?

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5. ______ you want to come to my house later? (are / am / do / does)

- Subject: you
- Verb: want → base verb
- Question → need auxiliary
- For you, use do
- ✔ Answer: do

> Do you want to come to my house later?

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6. Mike ______ like animals. (isn't / aren't / don't / don't)

- Subject: Mike → singular
- Verb: like → base verb
- Negative → need auxiliary
- Present simple negative → doesn't
- But the options are: isn't / aren't / don't / don't → don't appears twice

Wait — options: isn't / aren't / don't / don't → probably typo: should be doesn't?

But it says: (isn't / aren't / don't / don't)

So don't is listed twice — likely a mistake.

But Mike is singular → needs doesn't

But doesn't is not among the choices.

Wait — options: isn't / aren't / don't / don't

So possible answers are isn't, aren't, don't

But don't is for plural or "I/we/you"

For Mike, singular, doesn't is correct, but not listed.

Hmm.

Maybe the sentence is: Mike ______ like animals.

And options: isn't / aren't / don't / don't

But don't is for plural or "you".

So Mike doesn't like animals → doesn't is missing.

But perhaps the sentence is "Mike don't like animals" — which is incorrect.

Unless it's "Mike doesn't", but it's not an option.

Wait — maybe the options are misprinted.

But looking again: (isn't / aren't / don't / don't)

Only don't is available.

But don't is for you, we, they, not he.

So Mike don't like animals → ✘ incorrect.

But perhaps the intended answer is doesn't, but it's not listed.

Wait — could it be "Mike isn't like animals"? No — that’s ungrammatical.

Or "Mike aren't"? No.

So likely, the correct auxiliary is doesn't, but it's not among the options.

Wait — maybe the options are isn't / aren't / doesn't / don't — but the image shows don't / don't twice.

Possibility: typo in the worksheet.

But assuming the options are isn't / aren't / don't / don't, and we must pick from them, then don't is the closest — but still wrong.

Alternatively, maybe the sentence is "Mike doesn't like animals", and the auxiliary is doesn't, but it's not listed.

Wait — perhaps the options are meant to be:

> (isn't / aren't / doesn't / don't)

But in the image, it says: (isn't / aren't / don't / don't)

So doesn't is missing.

This is a problem.

But let’s assume it’s a typo, and doesn't was meant to be there.

But since it's not, and don't is listed twice, perhaps the intended answer is doesn't, but we can’t choose it.

Wait — another possibility: the sentence is "Mike don't like animals" — which is incorrect, so maybe the intended answer is doesn't, but it's not an option.

Alternatively, maybe the sentence is "Mike isn't liking animals" — but that’s not natural.

No.

Perhaps the sentence is "Mike doesn't like animals", and the auxiliary is doesn't, but it's not listed.

So this is likely a typo in the worksheet.

But let’s move on and return.

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7. The poster ______ hanging on the wall. (is / am / are / isn't)

- Subject: The poster → singular
- Verb: hanging → present participle → needs auxiliary
- Present continuous → is
- ✔ Answer: is

> is hanging

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8. Where ______ your family like to eat? (are / am / do / does)

- Subject: your family → collective noun, usually treated as plural
- Verb: like → base verb
- Question → need auxiliary
- Since family is plural → do
- ✔ Answer: do

> Where do your family like to eat?

(Note: Some may say "does", but "family" is plural → do)

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9. ______ your brother playing soccer this weekend? (is / am / does / are)

- Subject: your brother → singular
- Verb: playing → present participle
- Question → present continuous
- Singular → is
- ✔ Answer: is

> Is your brother playing soccer this weekend?

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10. Patty ______ watching television anymore. (is / doesn't / aren't / don't)

- Subject: Patty → singular
- Verb: watching → present participle
- Sentence is negative → "anymore"
- So: Patty is not watching... → isn't
- But options: is / doesn't / aren't / don't
- is is present, but we need isn't — but isn't is not listed
- Options: is / doesn't / aren't / don't

Wait — isn't is not an option. Only is is listed.

But the sentence is negative: "anymore" → implies negation.

So the full sentence should be: Patty isn't watching television anymore.

But isn't is not an option.

Options: is / doesn't / aren't / don't

So is is positive — but we need negative.

But doesn't → doesn't watching? No — doesn't watch → but here it's watching.

So doesn't doesn't work with watching.

Similarly, aren't → for plural.

So none of the options fit perfectly.

Wait — "Patty doesn't watch television anymore." → uses doesn't, but verb is watch, not watching.

But here, it's watching → so must be isn't.

But isn't is not listed.

So again, likely a typo.

But is is listed — maybe the sentence is "Patty is watching..." — but it says "anymore", which implies not anymore.

So the correct auxiliary is isn't, but it's not an option.

Wait — perhaps the options are is / isn't / aren't / don't — but in the image, it says is / doesn't / aren't / don't

So isn't is missing.

This is problematic.

But maybe the intended answer is doesn't, even though it's not correct.

No — doesn't + watching is invalid.

So likely, the correct answer is isn't, but it's not listed.

Alternatively, perhaps the verb is "watch" — but it says "watching".

So we have to go with what’s given.

But since isn't is not an option, and is is, but the sentence is negative, maybe it's a mistake.

Wait — perhaps the sentence is "Patty is not watching television anymore." → isn't → but not listed.

So I think there’s a typo in the options.

But let’s look at the pattern.

Wait — in question 10: options are is / doesn't / aren't / don't

But doesn't is for doesn't watch, not isn't watching.

So doesn't is incorrect.

is is positive — but sentence is negative.

So no good choice.

But perhaps the intended answer is is, and the sentence is "Patty is watching television anymore" — but that doesn't make sense.

"Anymore" implies not anymore.

So the sentence must be negative.

Therefore, the correct auxiliary is isn't, but it's not an option.

So likely, the options should be: is / isn't / aren't / don't

But as written, isn't is missing.

So perhaps it's a typo, and the intended answer is is, but that’s incorrect.

Alternatively, maybe the verb is "watch" — but it says "watching".

So I’ll assume the correct answer is isn't, but since it's not listed, and is is, maybe the worksheet has an error.

But let’s move on.

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11. His family ______ go to parties. (isn't / doesn't / aren't / don't)

- Subject: His family → collective noun, plural
- Verb: go → base verb
- Negative → need auxiliary
- Plural → don't
- ✔ Answer: don't

> His family don't go to parties.

(Yes, "family" is plural — e.g., "The family are going" — though sometimes treated as singular, but here don't is correct.)

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12. Tony and Tracy ______ planning a vacation. (is / am / does / are)

- Subject: Tony and Tracy → plural
- Verb: planning → present participle
- Present continuous → are
- ✔ Answer: are

> are planning

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🟨 Summary of Answers:

| # | Answer |
|---|--------|
| 1 | is |
| 2 | does (assuming emphasis: "Samantha does make dinner") |
| 3 | are |
| 4 | does |
| 5 | do |
| 6 | doesn't (but not listed — likely typo; if forced, don't is wrong) |
| 7 | is |
| 8 | do |
| 9 | is |
| 10 | isn't (but not listed — likely typo; is is listed but incorrect) |
| 11 | don't |
| 12 | are |

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✔ Final Answers (with corrections):

1. is
2. does
3. are
4. does
5. do
6. doesn't → but not in options — likely a typo in worksheet (should be doesn't)
7. is
8. do
9. is
10. isn't → but not in options — likely typo (should be isn't)
11. don't
12. are

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🔧 Explanation of Errors in Worksheet:

- Question 6: Options should include doesn't, not just don't.
- Question 10: Options should include isn't, not just is.

These are likely typos in the worksheet.

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✔ Corrected Version (if options were right):

6. Mike doesn't like animals.
10. Patty isn't watching television anymore.

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✔ Final Answer Key (based on best logic):

1. is
2. does
3. are
4. does
5. do
6. doesn't *(not in options – likely error)*
7. is
8. do
9. is
10. isn't *(not in options – likely error)*
11. don't
12. are

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If you're completing this worksheet, assume typos and choose:
- Q6: doesn't (if allowed), otherwise don't is incorrect.
- Q10: isn't (if allowed), otherwise is is incorrect.

But based on correct grammar, the answers are as above.

Let me know if you'd like a corrected version of the worksheet!