English verb conjugation
MUST CUP

Regular verb: cup - cupped - cupped

Affirmation

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

Negation

Simple form	V-ing form
I must not cup you must not cup he must not cup we must not cup you must not cup they must not cup	I must not be cupping you must not be cupping he must not be cupping we must not be cupping you must not be cupping they must not be cupping
Perfect	V-ing perfect
I must not have cupped you must not have cupped he must not have cupped we must not have cupped you must not have cupped they must not have cupped	I must not have been cupping you must not have been cupping he must not have been cupping we must not have been cupping you must not have been cupping they must not have been cupping

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not cup? must you not cup? must he not cup? must we not cup? must you not cup? must they not cup?	must I not be cupping? must you not be cupping? must he not be cupping? must we not be cupping? must you not be cupping? must they not be cupping?
Perfect	V-ing perfect
must I not have cupped? must you not have cupped? must he not have cupped? must we not have cupped? must you not have cupped? must they not have cupped?	must I not have been cupping? must you not have been cupping? must he not have been cupping? must we not have been cupping? must you not have been cupping? must they not have been cupping?