English verb conjugation
COULD COMPUTE

Regular verb: compute - computed - computed

Affirmation

Simple form	V-ing form
I could compute you could compute he could compute we could compute you could compute they could compute	I could be computing you could be computing he could be computing we could be computing you could be computing they could be computing
Perfect	V-ing perfect
I could have computed you could have computed he could have computed we could have computed you could have computed they could have computed	I could have been computing you could have been computing he could have been computing we could have been computing you could have been computing they could have been computing

Negation

Simple form	V-ing form
I could not compute you could not compute he could not compute we could not compute you could not compute they could not compute	I could not be computing you could not be computing he could not be computing we could not be computing you could not be computing they could not be computing
Perfect	V-ing perfect
I could not have computed you could not have computed he could not have computed we could not have computed you could not have computed they could not have computed	I could not have been computing you could not have been computing he could not have been computing we could not have been computing you could not have been computing they could not have been computing

Interrogative form

Simple form	V-ing form
could I compute? could you compute? could he compute? could we compute? could you compute? could they compute?	could I be computing? could you be computing? could he be computing? could we be computing? could you be computing? could they be computing?
Perfect	V-ing perfect
could I have computed? could you have computed? could he have computed? could we have computed? could you have computed? could they have computed?	could I have been computing? could you have been computing? could he have been computing? could we have been computing? could you have been computing? could they have been computing?

Interro-negative form

Simple form	V-ing form
could I not compute? could you not compute? could he not compute? could we not compute? could you not compute? could they not compute?	could I not be computing? could you not be computing? could he not be computing? could we not be computing? could you not be computing? could they not be computing?
Perfect	V-ing perfect
could I not have computed? could you not have computed? could he not have computed? could we not have computed? could you not have computed? could they not have computed?	could I not have been computing? could you not have been computing? could he not have been computing? could we not have been computing? could you not have been computing? could they not have been computing?