can cooperate
Regular verb: cooperate - cooperated- cooperated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can cooperate
you can cooperate
she can cooperate
we can cooperate
you can cooperate
they can cooperate 	I can be cooperating
you can be cooperating
she can be cooperating
we can be cooperating
you can be cooperating
they can be cooperating	I can have cooperated
you can have cooperated
she can have cooperated
we can have cooperated
you can have cooperated
they can have cooperated	I can have been cooperating
you can have been cooperating
she can have been cooperating
we can have been cooperating
you can have been cooperating
they can have been cooperating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't cooperate
you can't cooperate
she can't cooperate
we can't cooperate
you can't cooperate
they can't cooperate 	I can't be cooperating
you can't be cooperating
she can't be cooperating
we can't be cooperating
you can't be cooperating
they can't be cooperating	I can't have cooperated
you can't have cooperated
she can't have cooperated
we can't have cooperated
you can't have cooperated
they can't have cooperated	I can't have been cooperating
you can't have been cooperating
she can't have been cooperating
we can't have been cooperating
you can't have been cooperating
they can't have been cooperating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I cooperate?
can you cooperate?
can she cooperate?
can we cooperate?
can you cooperate?
can they cooperate? 	can I be cooperating?
can you be cooperating?
can she be cooperating?
can we be cooperating?
can you be cooperating?
can they be cooperating? 	can I have cooperated?
can you have cooperated?
can she have cooperated?
can we have cooperated?
can you have cooperated?
can they have cooperated? 	can I have been cooperating?
can you have been cooperating?
can she have been cooperating?
can we have been cooperating?
can you have been cooperating?
can they have been cooperating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I cooperate?
can't you cooperate?
can't she cooperate?
can't we cooperate?
can't you cooperate?
can't they cooperate? 	can't I be cooperating?
can't you be cooperating?
can't she be cooperating?
can't we be cooperating?
can't you be cooperating?
can't they be cooperating? 	can't I have cooperated?
can't you have cooperated?
can't she have cooperated?
can't we have cooperated?
can't you have cooperated?
can't they have cooperated? 	can't I have been cooperating?
can't you have been cooperating?
can't she have been cooperating?
can't we have been cooperating?
can't you have been cooperating?
can't they have been cooperating?