could overcall
Regular verb: overcall - overcalled- overcalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overcall
you could overcall
she could overcall
we could overcall
you could overcall
they could overcall 	I could be overcalling
you could be overcalling
she could be overcalling
we could be overcalling
you could be overcalling
they could be overcalling	I could have overcalled
you could have overcalled
she could have overcalled
we could have overcalled
you could have overcalled
they could have overcalled	I could have been overcalling
you could have been overcalling
she could have been overcalling
we could have been overcalling
you could have been overcalling
they could have been overcalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't overcall
you couldn't overcall
she couldn't overcall
we couldn't overcall
you couldn't overcall
they couldn't overcall 	I couldn't be overcalling
you couldn't be overcalling
she couldn't be overcalling
we couldn't be overcalling
you couldn't be overcalling
they couldn't be overcalling	I couldn't have overcalled
you couldn't have overcalled
she couldn't have overcalled
we couldn't have overcalled
you couldn't have overcalled
they couldn't have overcalled	I couldn't have been overcalling
you couldn't have been overcalling
she couldn't have been overcalling
we couldn't have been overcalling
you couldn't have been overcalling
they couldn't have been overcalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overcall?
could you overcall?
could she overcall?
could we overcall?
could you overcall?
could they overcall? 	could I be overcalling?
could you be overcalling?
could she be overcalling?
could we be overcalling?
could you be overcalling?
could they be overcalling? 	could I have overcalled?
could you have overcalled?
could she have overcalled?
could we have overcalled?
could you have overcalled?
could they have overcalled? 	could I have been overcalling?
could you have been overcalling?
could she have been overcalling?
could we have been overcalling?
could you have been overcalling?
could they have been overcalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I overcall?
couldn't you overcall?
couldn't she overcall?
couldn't we overcall?
couldn't you overcall?
couldn't they overcall? 	couldn't I be overcalling?
couldn't you be overcalling?
couldn't she be overcalling?
couldn't we be overcalling?
couldn't you be overcalling?
couldn't they be overcalling? 	couldn't I have overcalled?
couldn't you have overcalled?
couldn't she have overcalled?
couldn't we have overcalled?
couldn't you have overcalled?
couldn't they have overcalled? 	couldn't I have been overcalling?
couldn't you have been overcalling?
couldn't she have been overcalling?
couldn't we have been overcalling?
couldn't you have been overcalling?
couldn't they have been overcalling?