present perfect / simple past with tonight

[ademoglu]

Hello,

There is something that has been long confusing me. Should I use the present perfect or simple past with 'tonight'? I tried to make some sentences:

1- I have seen your boyfriend tonight.
2- I saw your boyfriend tonight.
3- She has given birth to her son tonight.
4- She gave birth to her son tonight.

I think sentences 2 and 4 are OK but cannot make sure of 1 and 3.

Thanks.

 

[J&K Tutoring]

All of your examples (and more) can be correct, depending on circumstance. Tonight is a range of time. All verb tenses could apply, depending on the order of events.

 

[MikeNewYork]

I don't like 1 and 3. I prefer 2 and 4.