I know that "You decided" is simple past, but I've never ever seen this kind of construction until I listened it in a song (You did decide):

Pronoun + Simple Past(Past assistant did) + simple present

Then, what is the difference? Does this construction really exit?

1 Answer 1


In simple sentences, we don't usually use the verb to do to indicate the tense(past/present). It only occurs in a question(interrogative)

did you decide it? -past

do you decide it? -present

However, you can use it in simple sentence for emphasis

You decided it. - simple past tense

You did decide it. -simple past tense but more emphatic.

EDIT: It also occurs in negative sentences

I don't decide it

I didn't decide it

  • 2
    @RodrigoSartoriJarouche You are welcome. But I recommend you read this Not so fast! . If another user give you a more satisfying answer, feel free to unaccept mine :) Feb 5, 2017 at 8:11
  • Ok it's true. I'll pay more attention in this detail! Thanks again! Feb 5, 2017 at 8:15

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