[Grammar] If clause containing Present perfect vs one containing Present Simple.

[saloom2]

Hello everyone,


I want to know the difference between these sentences. For me, there isn't any, but actually the first containing Present Perfect emphasises finished action.In my opinion, both mean I will swim when I finish, don't they?


If I have finished my HW by 7 AM, I will go swimming with you.
If I finish my HW by 7 Oclock, I will go swimming with you.

 

[bhaisahab]

Hello everyone,


I want to know the difference between these sentences. For me, there isn't any, but actually the first containing Present Perfect emphasises finished action.In my opinion, both mean I will swim when I finish, don't they?


If I have finished my HW by 7 AM, I will go swimming with you.
If I finish my HW by 7 Oclock, I will go swimming with you.

There is no difference in meaning.

 

[saloom2]

So in which cases dose it differ?

 

[Rover_KE]

They mean the same. You can use either.