English verb conjugation
COULD COOPERATE

Regular verb: cooperate - cooperated - cooperated

Affirmation

Simple form	V-ing form
I could cooperate you could cooperate he could cooperate we could cooperate you could cooperate they could cooperate	I could be cooperating you could be cooperating he could be cooperating we could be cooperating you could be cooperating they could be cooperating
Perfect	V-ing perfect
I could have cooperated you could have cooperated he could have cooperated we could have cooperated you could have cooperated they could have cooperated	I could have been cooperating you could have been cooperating he could have been cooperating we could have been cooperating you could have been cooperating they could have been cooperating

Negation

Simple form	V-ing form
I could not cooperate you could not cooperate he could not cooperate we could not cooperate you could not cooperate they could not cooperate	I could not be cooperating you could not be cooperating he could not be cooperating we could not be cooperating you could not be cooperating they could not be cooperating
Perfect	V-ing perfect
I could not have cooperated you could not have cooperated he could not have cooperated we could not have cooperated you could not have cooperated they could not have cooperated	I could not have been cooperating you could not have been cooperating he could not have been cooperating we could not have been cooperating you could not have been cooperating they could not have been cooperating

Interrogative form

Simple form	V-ing form
could I cooperate? could you cooperate? could he cooperate? could we cooperate? could you cooperate? could they cooperate?	could I be cooperating? could you be cooperating? could he be cooperating? could we be cooperating? could you be cooperating? could they be cooperating?
Perfect	V-ing perfect
could I have cooperated? could you have cooperated? could he have cooperated? could we have cooperated? could you have cooperated? could they have cooperated?	could I have been cooperating? could you have been cooperating? could he have been cooperating? could we have been cooperating? could you have been cooperating? could they have been cooperating?

Interro-negative form

Simple form	V-ing form
could I not cooperate? could you not cooperate? could he not cooperate? could we not cooperate? could you not cooperate? could they not cooperate?	could I not be cooperating? could you not be cooperating? could he not be cooperating? could we not be cooperating? could you not be cooperating? could they not be cooperating?
Perfect	V-ing perfect
could I not have cooperated? could you not have cooperated? could he not have cooperated? could we not have cooperated? could you not have cooperated? could they not have cooperated?	could I not have been cooperating? could you not have been cooperating? could he not have been cooperating? could we not have been cooperating? could you not have been cooperating? could they not have been cooperating?