could frequent
Regular verb: frequent - frequented- frequented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could frequent
you could frequent
she could frequent
we could frequent
you could frequent
they could frequent 	I could be frequenting
you could be frequenting
she could be frequenting
we could be frequenting
you could be frequenting
they could be frequenting	I could have frequented
you could have frequented
she could have frequented
we could have frequented
you could have frequented
they could have frequented	I could have been frequenting
you could have been frequenting
she could have been frequenting
we could have been frequenting
you could have been frequenting
they could have been frequenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not frequent
you could not frequent
she could not frequent
we could not frequent
you could not frequent
they could not frequent 	I could not be frequenting
you could not be frequenting
she could not be frequenting
we could not be frequenting
you could not be frequenting
they could not be frequenting	I could not have frequented
you could not have frequented
she could not have frequented
we could not have frequented
you could not have frequented
they could not have frequented	I could not have been frequenting
you could not have been frequenting
she could not have been frequenting
we could not have been frequenting
you could not have been frequenting
they could not have been frequenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I frequent?
could you frequent?
could she frequent?
could we frequent?
could you frequent?
could they frequent? 	could I be frequenting?
could you be frequenting?
could she be frequenting?
could we be frequenting?
could you be frequenting?
could they be frequenting? 	could I have frequented?
could you have frequented?
could she have frequented?
could we have frequented?
could you have frequented?
could they have frequented? 	could I have been frequenting?
could you have been frequenting?
could she have been frequenting?
could we have been frequenting?
could you have been frequenting?
could they have been frequenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not frequent?
could you not frequent?
could she not frequent?
could we not frequent?
could you not frequent?
could they not frequent? 	could I not be frequenting?
could you not be frequenting?
could she not be frequenting?
could we not be frequenting?
could you not be frequenting?
could they not be frequenting? 	could I not have frequented?
could you not have frequented?
could she not have frequented?
could we not have frequented?
could you not have frequented?
could they not have frequented? 	could I not have been frequenting?
could you not have been frequenting?
could she not have been frequenting?
could we not have been frequenting?
could you not have been frequenting?
could they not have been frequenting?