English verb conjugation
COULD CONTROL

Regular verb: control - controlled - controlled

Affirmation

Simple form	V-ing form
I could control you could control she could control we could control you could control they could control	I could be controlling you could be controlling she could be controlling we could be controlling you could be controlling they could be controlling
Perfect	V-ing perfect
I could have controlled you could have controlled she could have controlled we could have controlled you could have controlled they could have controlled	I could have been controlling you could have been controlling she could have been controlling we could have been controlling you could have been controlling they could have been controlling

Negation

Simple form	V-ing form
I could not control you could not control she could not control we could not control you could not control they could not control	I could not be controlling you could not be controlling she could not be controlling we could not be controlling you could not be controlling they could not be controlling
Perfect	V-ing perfect
I could not have controlled you could not have controlled she could not have controlled we could not have controlled you could not have controlled they could not have controlled	I could not have been controlling you could not have been controlling she could not have been controlling we could not have been controlling you could not have been controlling they could not have been controlling

Interrogative form

Simple form	V-ing form
could I control? could you control? could she control? could we control? could you control? could they control?	could I be controlling? could you be controlling? could she be controlling? could we be controlling? could you be controlling? could they be controlling?
Perfect	V-ing perfect
could I have controlled? could you have controlled? could she have controlled? could we have controlled? could you have controlled? could they have controlled?	could I have been controlling? could you have been controlling? could she have been controlling? could we have been controlling? could you have been controlling? could they have been controlling?

Interro-negative form

Simple form	V-ing form
could I not control? could you not control? could she not control? could we not control? could you not control? could they not control?	could I not be controlling? could you not be controlling? could she not be controlling? could we not be controlling? could you not be controlling? could they not be controlling?
Perfect	V-ing perfect
could I not have controlled? could you not have controlled? could she not have controlled? could we not have controlled? could you not have controlled? could they not have controlled?	could I not have been controlling? could you not have been controlling? could she not have been controlling? could we not have been controlling? could you not have been controlling? could they not have been controlling?