English verb conjugation
CAN CUP

Regular verb: cup - cupped - cupped

Affirmation

Simple form	V-ing form
I can cup you can cup he can cup we can cup you can cup they can cup	I can be cupping you can be cupping he can be cupping we can be cupping you can be cupping they can be cupping
Perfect	V-ing perfect
I can have cupped you can have cupped he can have cupped we can have cupped you can have cupped they can have cupped	I can have been cupping you can have been cupping he can have been cupping we can have been cupping you can have been cupping they can have been cupping

Negation

Simple form	V-ing form
I can't cup you can't cup he can't cup we can't cup you can't cup they can't cup	I can't be cupping you can't be cupping he can't be cupping we can't be cupping you can't be cupping they can't be cupping
Perfect	V-ing perfect
I can't have cupped you can't have cupped he can't have cupped we can't have cupped you can't have cupped they can't have cupped	I can't have been cupping you can't have been cupping he can't have been cupping we can't have been cupping you can't have been cupping they can't have been cupping

Interrogative form

Simple form	V-ing form
can I cup? can you cup? can he cup? can we cup? can you cup? can they cup?	can I be cupping? can you be cupping? can he be cupping? can we be cupping? can you be cupping? can they be cupping?
Perfect	V-ing perfect
can I have cupped? can you have cupped? can he have cupped? can we have cupped? can you have cupped? can they have cupped?	can I have been cupping? can you have been cupping? can he have been cupping? can we have been cupping? can you have been cupping? can they have been cupping?

Interro-negative form

Simple form	V-ing form
can't I cup? can't you cup? can't he cup? can't we cup? can't you cup? can't they cup?	can't I be cupping? can't you be cupping? can't he be cupping? can't we be cupping? can't you be cupping? can't they be cupping?
Perfect	V-ing perfect
can't I have cupped? can't you have cupped? can't he have cupped? can't we have cupped? can't you have cupped? can't they have cupped?	can't I have been cupping? can't you have been cupping? can't he have been cupping? can't we have been cupping? can't you have been cupping? can't they have been cupping?