Which one would sound better and which ones are completely wrong?

I've done everything that I:

• could, can, have been able to do

Also for this one: I've been doing everything that I

• can, have been able to do

Thank you in advance!

1 Answer 1


[In the past] I did everything I could/was able to do.

[Up to the present time] I've done/been doing everything I can. Could or was able to do would work, but have been able to do seems rather cumbersome.

  • Apart from it being cumbersome, is it incorrect to use it in any way in your opinion?
    – JOUA
    Commented Apr 29, 2022 at 19:51
  • 1
    Not incorrect. just not very idiomatic. Commented Apr 30, 2022 at 8:05

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