can vent
Regular verb: vent - vented- vented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can vent
you can vent
she can vent
we can vent
you can vent
they can vent 	I can be venting
you can be venting
she can be venting
we can be venting
you can be venting
they can be venting	I can have vented
you can have vented
she can have vented
we can have vented
you can have vented
they can have vented	I can have been venting
you can have been venting
she can have been venting
we can have been venting
you can have been venting
they can have been venting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot vent
you cannot vent
she cannot vent
we cannot vent
you cannot vent
they cannot vent 	I cannot be venting
you cannot be venting
she cannot be venting
we cannot be venting
you cannot be venting
they cannot be venting	I cannot have vented
you cannot have vented
she cannot have vented
we cannot have vented
you cannot have vented
they cannot have vented	I cannot have been venting
you cannot have been venting
she cannot have been venting
we cannot have been venting
you cannot have been venting
they cannot have been venting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I vent?
can you vent?
can she vent?
can we vent?
can you vent?
can they vent? 	can I be venting?
can you be venting?
can she be venting?
can we be venting?
can you be venting?
can they be venting? 	can I have vented?
can you have vented?
can she have vented?
can we have vented?
can you have vented?
can they have vented? 	can I have been venting?
can you have been venting?
can she have been venting?
can we have been venting?
can you have been venting?
can they have been venting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not vent?
can you not vent?
can she not vent?
can we not vent?
can you not vent?
can they not vent? 	can I not be venting?
can you not be venting?
can she not be venting?
can we not be venting?
can you not be venting?
can they not be venting? 	can I not have vented?
can you not have vented?
can she not have vented?
can we not have vented?
can you not have vented?
can they not have vented? 	can I not have been venting?
can you not have been venting?
can she not have been venting?
can we not have been venting?
can you not have been venting?
can they not have been venting?