could altercate
Regular verb: altercate - altercated- altercated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could altercate
you could altercate
he could altercate
we could altercate
you could altercate
they could altercate 	I could be altercating
you could be altercating
he could be altercating
we could be altercating
you could be altercating
they could be altercating	I could have altercated
you could have altercated
he could have altercated
we could have altercated
you could have altercated
they could have altercated	I could have been altercating
you could have been altercating
he could have been altercating
we could have been altercating
you could have been altercating
they could have been altercating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't altercate
you couldn't altercate
he couldn't altercate
we couldn't altercate
you couldn't altercate
they couldn't altercate 	I couldn't be altercating
you couldn't be altercating
he couldn't be altercating
we couldn't be altercating
you couldn't be altercating
they couldn't be altercating	I couldn't have altercated
you couldn't have altercated
he couldn't have altercated
we couldn't have altercated
you couldn't have altercated
they couldn't have altercated	I couldn't have been altercating
you couldn't have been altercating
he couldn't have been altercating
we couldn't have been altercating
you couldn't have been altercating
they couldn't have been altercating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I altercate?
could you altercate?
could he altercate?
could we altercate?
could you altercate?
could they altercate? 	could I be altercating?
could you be altercating?
could he be altercating?
could we be altercating?
could you be altercating?
could they be altercating? 	could I have altercated?
could you have altercated?
could he have altercated?
could we have altercated?
could you have altercated?
could they have altercated? 	could I have been altercating?
could you have been altercating?
could he have been altercating?
could we have been altercating?
could you have been altercating?
could they have been altercating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I altercate?
couldn't you altercate?
couldn't he altercate?
couldn't we altercate?
couldn't you altercate?
couldn't they altercate? 	couldn't I be altercating?
couldn't you be altercating?
couldn't he be altercating?
couldn't we be altercating?
couldn't you be altercating?
couldn't they be altercating? 	couldn't I have altercated?
couldn't you have altercated?
couldn't he have altercated?
couldn't we have altercated?
couldn't you have altercated?
couldn't they have altercated? 	couldn't I have been altercating?
couldn't you have been altercating?
couldn't he have been altercating?
couldn't we have been altercating?
couldn't you have been altercating?
couldn't they have been altercating?