English verb conjugation
CAN COMPUTE

Regular verb: compute - computed - computed

Affirmation

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

Negation

Simple form	V-ing form
I can't compute you can't compute she can't compute we can't compute you can't compute they can't compute	I can't be computing you can't be computing she can't be computing we can't be computing you can't be computing they can't be computing
Perfect	V-ing perfect
I can't have computed you can't have computed she can't have computed we can't have computed you can't have computed they can't have computed	I can't have been computing you can't have been computing she can't have been computing we can't have been computing you can't have been computing they can't have been computing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I compute? can't you compute? can't she compute? can't we compute? can't you compute? can't they compute?	can't I be computing? can't you be computing? can't she be computing? can't we be computing? can't you be computing? can't they be computing?
Perfect	V-ing perfect
can't I have computed? can't you have computed? can't she have computed? can't we have computed? can't you have computed? can't they have computed?	can't I have been computing? can't you have been computing? can't she have been computing? can't we have been computing? can't you have been computing? can't they have been computing?