I could benchpress you could benchpress she could benchpress we could benchpress you could benchpress they could benchpress
V-ing form
I could be benchpressing you could be benchpressing she could be benchpressing we could be benchpressing you could be benchpressing they could be benchpressing
Perfect
I could have benchpressed you could have benchpressed she could have benchpressed we could have benchpressed you could have benchpressed they could have benchpressed
V-ing perfect
I could have been benchpressing you could have been benchpressing she could have been benchpressing we could have been benchpressing you could have been benchpressing they could have been benchpressing
Negation
Simple form
I could not benchpress you could not benchpress she could not benchpress we could not benchpress you could not benchpress they could not benchpress
V-ing form
I could not be benchpressing you could not be benchpressing she could not be benchpressing we could not be benchpressing you could not be benchpressing they could not be benchpressing
Perfect
I could not have benchpressed you could not have benchpressed she could not have benchpressed we could not have benchpressed you could not have benchpressed they could not have benchpressed
V-ing perfect
I could not have been benchpressing you could not have been benchpressing she could not have been benchpressing we could not have been benchpressing you could not have been benchpressing they could not have been benchpressing
Interrogative form
Simple form
could I benchpress? could you benchpress? could she benchpress? could we benchpress? could you benchpress? could they benchpress?
V-ing form
could I be benchpressing? could you be benchpressing? could she be benchpressing? could we be benchpressing? could you be benchpressing? could they be benchpressing?
Perfect
could I have benchpressed? could you have benchpressed? could she have benchpressed? could we have benchpressed? could you have benchpressed? could they have benchpressed?
V-ing perfect
could I have been benchpressing? could you have been benchpressing? could she have been benchpressing? could we have been benchpressing? could you have been benchpressing? could they have been benchpressing?
Interro-negative form
Simple form
could I not benchpress? could you not benchpress? could she not benchpress? could we not benchpress? could you not benchpress? could they not benchpress?
V-ing form
could I not be benchpressing? could you not be benchpressing? could she not be benchpressing? could we not be benchpressing? could you not be benchpressing? could they not be benchpressing?
Perfect
could I not have benchpressed? could you not have benchpressed? could she not have benchpressed? could we not have benchpressed? could you not have benchpressed? could they not have benchpressed?
V-ing perfect
could I not have been benchpressing? could you not have been benchpressing? could she not have been benchpressing? could we not have been benchpressing? could you not have been benchpressing? could they not have been benchpressing?