can frequent
Regular verb: frequent - frequented- frequented

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot frequent
you cannot frequent
he cannot frequent
we cannot frequent
you cannot frequent
they cannot frequent 	I cannot be frequenting
you cannot be frequenting
he cannot be frequenting
we cannot be frequenting
you cannot be frequenting
they cannot be frequenting	I cannot have frequented
you cannot have frequented
he cannot have frequented
we cannot have frequented
you cannot have frequented
they cannot have frequented	I cannot have been frequenting
you cannot have been frequenting
he cannot have been frequenting
we cannot have been frequenting
you cannot have been frequenting
they cannot have been frequenting	

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

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