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Did you change your mind and bought the red car?

Why is the word "bought" incorrect in this context? I was teaching ESL and this question came up.

2
  • 1
    Would you say, “Did you bought the car” or “Did you buy the car?”
    – Jim
    Oct 21, 2016 at 1:53
  • 2
    Break it into two simple sentences. "Did you change your mind?" and "Did you bought the red car?" Do you see anything wrong?
    – Hot Licks
    Oct 21, 2016 at 1:53

2 Answers 2

1

If you remove the conjunction(and) and break the sentence into two clauses. It will be

Did you change your mind?

And

Did you buy the red car?

As you can see, did is the helping verb for both verbs: Change and buy. I'm sure you were told by your English teacher to always use a bare infinitive verb after did. It's a basic rule that is commonly taught.

-2

It is incorrect because 'change' is present tense and 'bought' is past tense. "You changed your mind and bought the red car?" Both verbs past tense. "Did you change your mind and buy the red car?" Both verbs present tense.

2
  • "Did" is also a verb.
    – The Photon
    Oct 21, 2016 at 5:12
  • When dealing with "did change" and "did buy", both "change" and "buy" are infinitive -- they have no tense. Oct 28, 2016 at 22:06

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