English verb conjugation
MUST PUP

Regular verb: pup - pupped - pupped

Affirmation

Simple form	V-ing form
I must pup you must pup he must pup we must pup you must pup they must pup	I must be pupping you must be pupping he must be pupping we must be pupping you must be pupping they must be pupping
Perfect	V-ing perfect
I must have pupped you must have pupped he must have pupped we must have pupped you must have pupped they must have pupped	I must have been pupping you must have been pupping he must have been pupping we must have been pupping you must have been pupping they must have been pupping

Negation

Simple form	V-ing form
I must not pup you must not pup he must not pup we must not pup you must not pup they must not pup	I must not be pupping you must not be pupping he must not be pupping we must not be pupping you must not be pupping they must not be pupping
Perfect	V-ing perfect
I must not have pupped you must not have pupped he must not have pupped we must not have pupped you must not have pupped they must not have pupped	I must not have been pupping you must not have been pupping he must not have been pupping we must not have been pupping you must not have been pupping they must not have been pupping

Interrogative form

Simple form	V-ing form
must I pup? must you pup? must he pup? must we pup? must you pup? must they pup?	must I be pupping? must you be pupping? must he be pupping? must we be pupping? must you be pupping? must they be pupping?
Perfect	V-ing perfect
must I have pupped? must you have pupped? must he have pupped? must we have pupped? must you have pupped? must they have pupped?	must I have been pupping? must you have been pupping? must he have been pupping? must we have been pupping? must you have been pupping? must they have been pupping?

Interro-negative form

Simple form	V-ing form
must I not pup? must you not pup? must he not pup? must we not pup? must you not pup? must they not pup?	must I not be pupping? must you not be pupping? must he not be pupping? must we not be pupping? must you not be pupping? must they not be pupping?
Perfect	V-ing perfect
must I not have pupped? must you not have pupped? must he not have pupped? must we not have pupped? must you not have pupped? must they not have pupped?	must I not have been pupping? must you not have been pupping? must he not have been pupping? must we not have been pupping? must you not have been pupping? must they not have been pupping?