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 mustn't pup you mustn't pup he mustn't pup we mustn't pup you mustn't pup they mustn't pup	I mustn't be pupping you mustn't be pupping he mustn't be pupping we mustn't be pupping you mustn't be pupping they mustn't be pupping
Perfect	V-ing perfect
I mustn't have pupped you mustn't have pupped he mustn't have pupped we mustn't have pupped you mustn't have pupped they mustn't have pupped	I mustn't have been pupping you mustn't have been pupping he mustn't have been pupping we mustn't have been pupping you mustn't have been pupping they mustn't 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
mustn't I pup? mustn't you pup? mustn't he pup? mustn't we pup? mustn't you pup? mustn't they pup?	mustn't I be pupping? mustn't you be pupping? mustn't he be pupping? mustn't we be pupping? mustn't you be pupping? mustn't they be pupping?
Perfect	V-ing perfect
mustn't I have pupped? mustn't you have pupped? mustn't he have pupped? mustn't we have pupped? mustn't you have pupped? mustn't they have pupped?	mustn't I have been pupping? mustn't you have been pupping? mustn't he have been pupping? mustn't we have been pupping? mustn't you have been pupping? mustn't they have been pupping?