English verb conjugation
CAN VENT

Regular verb: vent - vented - vented

Affirmation

Simple form	V-ing form
I can vent you can vent he can vent we can vent you can vent they can vent	I can be venting you can be venting he can be venting we can be venting you can be venting they can be venting
Perfect	V-ing perfect
I can have vented you can have vented he 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 he 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
I can't vent you can't vent he can't vent we can't vent you can't vent they can't vent	I can't be venting you can't be venting he can't be venting we can't be venting you can't be venting they can't be venting
Perfect	V-ing perfect
I can't have vented you can't have vented he can't have vented we can't have vented you can't have vented they can't have vented	I can't have been venting you can't have been venting he can't have been venting we can't have been venting you can't have been venting they can't have been venting

Interrogative form

Simple form	V-ing form
can I vent? can you vent? can he vent? can we vent? can you vent? can they vent?	can I be venting? can you be venting? can he be venting? can we be venting? can you be venting? can they be venting?
Perfect	V-ing perfect
can I have vented? can you have vented? can he 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 he 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
can't I vent? can't you vent? can't he vent? can't we vent? can't you vent? can't they vent?	can't I be venting? can't you be venting? can't he be venting? can't we be venting? can't you be venting? can't they be venting?
Perfect	V-ing perfect
can't I have vented? can't you have vented? can't he have vented? can't we have vented? can't you have vented? can't they have vented?	can't I have been venting? can't you have been venting? can't he have been venting? can't we have been venting? can't you have been venting? can't they have been venting?