Commas - Free Printable
Educational worksheet: Commas. Download and print for classroom or home learning activities.
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Show Answer Key & Explanations
Step-by-step solution for: Commas
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Show Answer Key & Explanations
Step-by-step solution for: Commas
Let’s go through each sentence one by one and add commas where they’re needed. Commas help separate ideas, list items, or set off extra information so the sentence is easier to read.
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1. On the last day of the year it is a great time to review your accomplishments.
→ Add comma after “year” because it’s an introductory phrase.
✔ *On the last day of the year, it is a great time to review your accomplishments.*
2. Because of the snow school will be canceled until further notice.
→ Add comma after “snow” — this is also an introductory phrase.
✔ *Because of the snow, school will be canceled until further notice.*
3. Sure I can help you move on Saturday.
→ Add comma after “Sure” — it’s a direct address or interjection.
✔ *Sure, I can help you move on Saturday.*
4. There are people lined up at the door and there are people crowded in the hall.
→ This is two complete thoughts joined by “and.” Add comma before “and.”
✔ *There are people lined up at the door, and there are people crowded in the hall.*
5. I saw my uncle who is also a policeman directing traffic after the game.
→ “who is also a policeman” gives extra info about the uncle → put commas around it.
✔ *I saw my uncle, who is also a policeman, directing traffic after the game.*
6. Make sure you include snacks water and Band-Aids when packing for the trip.
→ List of 3 things: snacks, water, Band-Aids → need commas between them.
✔ *Make sure you include snacks, water, and Band-Aids when packing for the trip.*
7. My mother always said "You are one thought away from a good feeling."
→ When quoting someone, use a comma before the quote starts.
✔ *My mother always said, “You are one thought away from a good feeling.”*
8. I was born in 1975 in the city of Cincinnati Ohio.
→ City and state need a comma between them.
✔ *I was born in 1975 in the city of Cincinnati, Ohio.*
9. The St. Patrick's Day party will be held on March 16 2017.
→ Date format: month day, year → add comma after the day.
✔ *The St. Patrick’s Day party will be held on March 16, 2017.*
10. Boys and girls please be sure you write the date on your homework.
→ “Boys and girls” is being addressed directly → add comma after it.
✔ *Boys and girls, please be sure you write the date on your homework.*
11. I think I will stay home today or I think I will head to the park.
→ Two complete thoughts joined by “or” → add comma before “or.”
✔ *I think I will stay home today, or I think I will head to the park.*
12. Could you please pass the salt and pepper Jennifer?
→ “Jennifer” is being spoken to → add comma before her name.
✔ *Could you please pass the salt and pepper, Jennifer?*
13. Your dress, the one with the stripes is the one I want to borrow.
→ “the one with the stripes” is extra info → needs commas around it.
✔ *Your dress, the one with the stripes, is the one I want to borrow.*
14. I can stay busy all day but I do not feel like I get anything done.
→ Two complete thoughts joined by “but” → add comma before “but.”
✔ *I can stay busy all day, but I do not feel like I get anything done.*
15. If you like cookies then you will love cookies and cream ice cream.
→ Introductory clause (“If you like cookies”) → add comma after it.
✔ *If you like cookies, then you will love cookies and cream ice cream.*
16. Hey I wanted the last pieces of cake and pie.
→ “Hey” is an interjection → add comma after it.
✔ *Hey, I wanted the last pieces of cake and pie.*
17. I guess my favorite colors are blue red and white.
→ List of 3 colors → add commas between them.
✔ *I guess my favorite colors are blue, red, and white.*
18. "The class may have recess all day" announced the teacher.
→ Quote comes first → add comma inside the quotation marks before closing quote.
✔ *“The class may have recess all day,” announced the teacher.*
19. You can tell me you are kind but can you show me you are kind?
→ Two complete thoughts joined by “but” → add comma before “but.”
✔ *You can tell me you are kind, but can you show me you are kind?*
20. On the table in the living room your books are sitting there unused.
→ Introductory phrase → add comma after “room.”
✔ *On the table in the living room, your books are sitting there unused.*
21. I saw my teacher the one from elementary school shopping today.
→ “the one from elementary school” is extra info → add commas around it.
✔ *I saw my teacher, the one from elementary school, shopping today.*
22. This is what I think you are better off staying home and doing your homework.
→ No comma needed here — it’s one smooth idea.
✔ (No change) *This is what I think: you are better off staying home and doing your homework.*
Wait — actually, adding a colon might help clarity, but since we’re only adding commas, let’s check again. Actually, no comma is strictly required here unless we rephrase. But if we consider “you are better off...” as explaining “what I think,” maybe a comma after “think”? Not standard. Let’s leave it as is — no comma needed.
✔ *This is what I think you are better off staying home and doing your homework.* → Still okay without comma. Some might argue for a comma after “think,” but it’s not necessary. We’ll skip it.
Actually — wait! Let’s look again. The sentence is:
“This is what I think you are better off staying home and doing your homework.”
It’s a bit run-on. Maybe it should be:
“This is what I think: you are better off...” — but that’s a colon, not a comma. Since we’re only adding commas, and none are grammatically required here, we’ll leave it.
BUT — some style guides would say to add a comma after “think” to introduce the explanation. Let’s go with that for clarity.
✔ *This is what I think, you are better off staying home and doing your homework.*
Hmm — actually, that creates a comma splice. Better to leave it alone OR restructure. Since we can’t restructure, and no comma is technically required, we’ll say:
✔ (No comma needed) — but many teachers accept a comma here for pause. To be safe, let’s NOT add one. Final decision: no comma.
Wait — let me double-check grammar rules. In informal writing, sometimes a comma is used before a clause that explains “what I think.” But strictly speaking, it’s not correct. So we’ll leave it without a comma.
23. I think I can do it but actually I know I can do it.
→ Two complete thoughts joined by “but” → add comma before “but.” Also, “actually” is an interrupter → add commas around it? Or just before “but”?
Let’s break it down:
“I think I can do it, but actually I know I can do it.” → Comma before “but” is enough. “Actually” doesn’t need commas here because it’s modifying the whole clause.
✔ *I think I can do it, but actually I know I can do it.*
24. Sure you say that now.
→ “Sure” is an interjection → add comma after it.
✔ *Sure, you say that now.*
25. I was born on October 10 2005 in the hospital near my home.
→ Date: October 10, 2005 → add comma after the day.
✔ *I was born on October 10, 2005, in the hospital near my home.*
Also, after the year, if the sentence continues, add another comma. Yes — so two commas: one after “10”, one after “2005”.
---
Now let’s compile the final corrected sentences:
Final Answer:
1. On the last day of the year, it is a great time to review your accomplishments.
2. Because of the snow, school will be canceled until further notice.
3. Sure, I can help you move on Saturday.
4. There are people lined up at the door, and there are people crowded in the hall.
5. I saw my uncle, who is also a policeman, directing traffic after the game.
6. Make sure you include snacks, water, and Band-Aids when packing for the trip.
7. My mother always said, “You are one thought away from a good feeling.”
8. I was born in 1975 in the city of Cincinnati, Ohio.
9. The St. Patrick’s Day party will be held on March 16, 2017.
10. Boys and girls, please be sure you write the date on your homework.
11. I think I will stay home today, or I think I will head to the park.
12. Could you please pass the salt and pepper, Jennifer?
13. Your dress, the one with the stripes, is the one I want to borrow.
14. I can stay busy all day, but I do not feel like I get anything done.
15. If you like cookies, then you will love cookies and cream ice cream.
16. Hey, I wanted the last pieces of cake and pie.
17. I guess my favorite colors are blue, red, and white.
18. “The class may have recess all day,” announced the teacher.
19. You can tell me you are kind, but can you show me you are kind?
20. On the table in the living room, your books are sitting there unused.
21. I saw my teacher, the one from elementary school, shopping today.
22. This is what I think you are better off staying home and doing your homework. *(no comma needed)*
23. I think I can do it, but actually I know I can do it.
24. Sure, you say that now.
25. I was born on October 10, 2005, in the hospital near my home.
---
1. On the last day of the year it is a great time to review your accomplishments.
→ Add comma after “year” because it’s an introductory phrase.
✔ *On the last day of the year, it is a great time to review your accomplishments.*
2. Because of the snow school will be canceled until further notice.
→ Add comma after “snow” — this is also an introductory phrase.
✔ *Because of the snow, school will be canceled until further notice.*
3. Sure I can help you move on Saturday.
→ Add comma after “Sure” — it’s a direct address or interjection.
✔ *Sure, I can help you move on Saturday.*
4. There are people lined up at the door and there are people crowded in the hall.
→ This is two complete thoughts joined by “and.” Add comma before “and.”
✔ *There are people lined up at the door, and there are people crowded in the hall.*
5. I saw my uncle who is also a policeman directing traffic after the game.
→ “who is also a policeman” gives extra info about the uncle → put commas around it.
✔ *I saw my uncle, who is also a policeman, directing traffic after the game.*
6. Make sure you include snacks water and Band-Aids when packing for the trip.
→ List of 3 things: snacks, water, Band-Aids → need commas between them.
✔ *Make sure you include snacks, water, and Band-Aids when packing for the trip.*
7. My mother always said "You are one thought away from a good feeling."
→ When quoting someone, use a comma before the quote starts.
✔ *My mother always said, “You are one thought away from a good feeling.”*
8. I was born in 1975 in the city of Cincinnati Ohio.
→ City and state need a comma between them.
✔ *I was born in 1975 in the city of Cincinnati, Ohio.*
9. The St. Patrick's Day party will be held on March 16 2017.
→ Date format: month day, year → add comma after the day.
✔ *The St. Patrick’s Day party will be held on March 16, 2017.*
10. Boys and girls please be sure you write the date on your homework.
→ “Boys and girls” is being addressed directly → add comma after it.
✔ *Boys and girls, please be sure you write the date on your homework.*
11. I think I will stay home today or I think I will head to the park.
→ Two complete thoughts joined by “or” → add comma before “or.”
✔ *I think I will stay home today, or I think I will head to the park.*
12. Could you please pass the salt and pepper Jennifer?
→ “Jennifer” is being spoken to → add comma before her name.
✔ *Could you please pass the salt and pepper, Jennifer?*
13. Your dress, the one with the stripes is the one I want to borrow.
→ “the one with the stripes” is extra info → needs commas around it.
✔ *Your dress, the one with the stripes, is the one I want to borrow.*
14. I can stay busy all day but I do not feel like I get anything done.
→ Two complete thoughts joined by “but” → add comma before “but.”
✔ *I can stay busy all day, but I do not feel like I get anything done.*
15. If you like cookies then you will love cookies and cream ice cream.
→ Introductory clause (“If you like cookies”) → add comma after it.
✔ *If you like cookies, then you will love cookies and cream ice cream.*
16. Hey I wanted the last pieces of cake and pie.
→ “Hey” is an interjection → add comma after it.
✔ *Hey, I wanted the last pieces of cake and pie.*
17. I guess my favorite colors are blue red and white.
→ List of 3 colors → add commas between them.
✔ *I guess my favorite colors are blue, red, and white.*
18. "The class may have recess all day" announced the teacher.
→ Quote comes first → add comma inside the quotation marks before closing quote.
✔ *“The class may have recess all day,” announced the teacher.*
19. You can tell me you are kind but can you show me you are kind?
→ Two complete thoughts joined by “but” → add comma before “but.”
✔ *You can tell me you are kind, but can you show me you are kind?*
20. On the table in the living room your books are sitting there unused.
→ Introductory phrase → add comma after “room.”
✔ *On the table in the living room, your books are sitting there unused.*
21. I saw my teacher the one from elementary school shopping today.
→ “the one from elementary school” is extra info → add commas around it.
✔ *I saw my teacher, the one from elementary school, shopping today.*
22. This is what I think you are better off staying home and doing your homework.
→ No comma needed here — it’s one smooth idea.
✔ (No change) *This is what I think: you are better off staying home and doing your homework.*
Wait — actually, adding a colon might help clarity, but since we’re only adding commas, let’s check again. Actually, no comma is strictly required here unless we rephrase. But if we consider “you are better off...” as explaining “what I think,” maybe a comma after “think”? Not standard. Let’s leave it as is — no comma needed.
✔ *This is what I think you are better off staying home and doing your homework.* → Still okay without comma. Some might argue for a comma after “think,” but it’s not necessary. We’ll skip it.
Actually — wait! Let’s look again. The sentence is:
“This is what I think you are better off staying home and doing your homework.”
It’s a bit run-on. Maybe it should be:
“This is what I think: you are better off...” — but that’s a colon, not a comma. Since we’re only adding commas, and none are grammatically required here, we’ll leave it.
BUT — some style guides would say to add a comma after “think” to introduce the explanation. Let’s go with that for clarity.
✔ *This is what I think, you are better off staying home and doing your homework.*
Hmm — actually, that creates a comma splice. Better to leave it alone OR restructure. Since we can’t restructure, and no comma is technically required, we’ll say:
✔ (No comma needed) — but many teachers accept a comma here for pause. To be safe, let’s NOT add one. Final decision: no comma.
Wait — let me double-check grammar rules. In informal writing, sometimes a comma is used before a clause that explains “what I think.” But strictly speaking, it’s not correct. So we’ll leave it without a comma.
23. I think I can do it but actually I know I can do it.
→ Two complete thoughts joined by “but” → add comma before “but.” Also, “actually” is an interrupter → add commas around it? Or just before “but”?
Let’s break it down:
“I think I can do it, but actually I know I can do it.” → Comma before “but” is enough. “Actually” doesn’t need commas here because it’s modifying the whole clause.
✔ *I think I can do it, but actually I know I can do it.*
24. Sure you say that now.
→ “Sure” is an interjection → add comma after it.
✔ *Sure, you say that now.*
25. I was born on October 10 2005 in the hospital near my home.
→ Date: October 10, 2005 → add comma after the day.
✔ *I was born on October 10, 2005, in the hospital near my home.*
Also, after the year, if the sentence continues, add another comma. Yes — so two commas: one after “10”, one after “2005”.
---
Now let’s compile the final corrected sentences:
Final Answer:
1. On the last day of the year, it is a great time to review your accomplishments.
2. Because of the snow, school will be canceled until further notice.
3. Sure, I can help you move on Saturday.
4. There are people lined up at the door, and there are people crowded in the hall.
5. I saw my uncle, who is also a policeman, directing traffic after the game.
6. Make sure you include snacks, water, and Band-Aids when packing for the trip.
7. My mother always said, “You are one thought away from a good feeling.”
8. I was born in 1975 in the city of Cincinnati, Ohio.
9. The St. Patrick’s Day party will be held on March 16, 2017.
10. Boys and girls, please be sure you write the date on your homework.
11. I think I will stay home today, or I think I will head to the park.
12. Could you please pass the salt and pepper, Jennifer?
13. Your dress, the one with the stripes, is the one I want to borrow.
14. I can stay busy all day, but I do not feel like I get anything done.
15. If you like cookies, then you will love cookies and cream ice cream.
16. Hey, I wanted the last pieces of cake and pie.
17. I guess my favorite colors are blue, red, and white.
18. “The class may have recess all day,” announced the teacher.
19. You can tell me you are kind, but can you show me you are kind?
20. On the table in the living room, your books are sitting there unused.
21. I saw my teacher, the one from elementary school, shopping today.
22. This is what I think you are better off staying home and doing your homework. *(no comma needed)*
23. I think I can do it, but actually I know I can do it.
24. Sure, you say that now.
25. I was born on October 10, 2005, in the hospital near my home.
Parent Tip: Review the logic above to help your child master the concept of commas worksheet with answers.
