English verb conjugation
CAN SUP

Regular verb: sup - supped - supped

Affirmation

Simple form	V-ing form
I can sup you can sup he can sup we can sup you can sup they can sup	I can be supping you can be supping he can be supping we can be supping you can be supping they can be supping
Perfect	V-ing perfect
I can have supped you can have supped he can have supped we can have supped you can have supped they can have supped	I can have been supping you can have been supping he can have been supping we can have been supping you can have been supping they can have been supping

Negation

Simple form	V-ing form
I can't sup you can't sup he can't sup we can't sup you can't sup they can't sup	I can't be supping you can't be supping he can't be supping we can't be supping you can't be supping they can't be supping
Perfect	V-ing perfect
I can't have supped you can't have supped he can't have supped we can't have supped you can't have supped they can't have supped	I can't have been supping you can't have been supping he can't have been supping we can't have been supping you can't have been supping they can't have been supping

Interrogative form

Simple form	V-ing form
can I sup? can you sup? can he sup? can we sup? can you sup? can they sup?	can I be supping? can you be supping? can he be supping? can we be supping? can you be supping? can they be supping?
Perfect	V-ing perfect
can I have supped? can you have supped? can he have supped? can we have supped? can you have supped? can they have supped?	can I have been supping? can you have been supping? can he have been supping? can we have been supping? can you have been supping? can they have been supping?

Interro-negative form

Simple form	V-ing form
can't I sup? can't you sup? can't he sup? can't we sup? can't you sup? can't they sup?	can't I be supping? can't you be supping? can't he be supping? can't we be supping? can't you be supping? can't they be supping?
Perfect	V-ing perfect
can't I have supped? can't you have supped? can't he have supped? can't we have supped? can't you have supped? can't they have supped?	can't I have been supping? can't you have been supping? can't he have been supping? can't we have been supping? can't you have been supping? can't they have been supping?