did and did not
The rule
Questions and negatives in the past use did, and the main verb goes back to its plain form. Did you go? — not Did you went? The same is true of the negative: I did not see him, never I did not saw him. be is the exception: it uses was/were with no did.
Did + subject + plain verb? · did not + plain verb · but: Was he …? / He was not …
Examples
Did you call the office?
I did not understand the last part.
Where did she go after work?
They did not receive the letter.
Common mistakes
-
Wrong: Did you went to the doctor?
Right: Did you go to the doctor?
After did the verb has no past ending.
-
Wrong: I did not saw him.
Right: I did not see him.
did not is followed by the plain verb.
Practice questions
Try each one yourself first, then open “Show answer” for the solution and the reason.
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1Fill in the gap.
Did you _____ the email?
- sends
- send
- sending
- sent
Show answer
Answer: B Did you send the email?
After did the verb is plain.
-
2Fill in the gap.
She did not _____ the bus this morning.
- catches
- caught
- catching
- catch
Show answer
Answer: D She did not catch the bus this morning.
After did not the verb is plain.
-
3Fill in the gap.
_____ they enjoy the trip?
- Did
- Were
- Do
- Was
Show answer
Answer: A Did they enjoy the trip?
A past question with an ordinary verb starts with Did.
-
4Fill in the gap.
_____ she at the meeting yesterday?
- Did
- Was
- Does
- Were
Show answer
Answer: B Was she at the meeting yesterday?
With be, use was or were, not did.
-
5Fill in the gap.
What time _____ the shop close?
- did
- does
- were
- was
Show answer
Answer: A What time did the shop close?
A wh-word, then did, then the plain verb.
-
6Choose the correct sentence.
- Did he pay by card?
- Did he paid by card?
- Did he pays by card?
- He did pay by card?
Show answer
Answer: A Did he pay by card?
After did the verb is plain.
-
7Choose the correct sentence.
- We did not have time.
- We did not had time.
- We had not time.
- We not had time.
Show answer
Answer: A We did not have time.
did not is followed by have, not had.
-
8This sentence is wrong. Choose the fix.
Which sentence is wrong?
- Did you saw the doctor?
- Did she see the doctor?
- Did you see the nurse?
- Did you see the doctor?
Show answer
Answer: A Did you saw the doctor?
After did the verb loses its past form.
-
9This sentence is wrong. Choose the fix.
Which sentence is wrong?
- She was not at home.
- She did not was at home.
- They were not at home.
- She did not stay at home.
Show answer
Answer: B She did not was at home.
be does not take did.
-
10Put the words in the right order.
Did you speak to the manager
Show answer
Answer: Did you speak to the manager?
Did, then the subject, then the plain verb.
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