can vs could (I could/can finish the project tomorrow)

[Bjay]

when do i use these words?

which is correct:
> i could finish the project tomorrow.
> i can finish the project tomorrow.

in what context do i use 'can' and 'could'?

thanks!

[Pamela]

Hi bjay,

Both sentences are correct. As a rule, 'could' shows a greater degree of doubt.

[Nnkk]

could... possibility
Can... ability