English verb conjugation
COULD CUP

Regular verb: cup - cupped - cupped

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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