English verb conjugation
MUST MUSE

Regular verb: muse - mused - mused

Affirmation

Simple form	V-ing form
I must muse you must muse she must muse we must muse you must muse they must muse	I must be musing you must be musing she must be musing we must be musing you must be musing they must be musing
Perfect	V-ing perfect
I must have mused you must have mused she must have mused we must have mused you must have mused they must have mused	I must have been musing you must have been musing she must have been musing we must have been musing you must have been musing they must have been musing

Negation

Simple form	V-ing form
I mustn't muse you mustn't muse she mustn't muse we mustn't muse you mustn't muse they mustn't muse	I mustn't be musing you mustn't be musing she mustn't be musing we mustn't be musing you mustn't be musing they mustn't be musing
Perfect	V-ing perfect
I mustn't have mused you mustn't have mused she mustn't have mused we mustn't have mused you mustn't have mused they mustn't have mused	I mustn't have been musing you mustn't have been musing she mustn't have been musing we mustn't have been musing you mustn't have been musing they mustn't have been musing

Interrogative form

Simple form	V-ing form
must I muse? must you muse? must she muse? must we muse? must you muse? must they muse?	must I be musing? must you be musing? must she be musing? must we be musing? must you be musing? must they be musing?
Perfect	V-ing perfect
must I have mused? must you have mused? must she have mused? must we have mused? must you have mused? must they have mused?	must I have been musing? must you have been musing? must she have been musing? must we have been musing? must you have been musing? must they have been musing?

Interro-negative form

Simple form	V-ing form
mustn't I muse? mustn't you muse? mustn't she muse? mustn't we muse? mustn't you muse? mustn't they muse?	mustn't I be musing? mustn't you be musing? mustn't she be musing? mustn't we be musing? mustn't you be musing? mustn't they be musing?
Perfect	V-ing perfect
mustn't I have mused? mustn't you have mused? mustn't she have mused? mustn't we have mused? mustn't you have mused? mustn't they have mused?	mustn't I have been musing? mustn't you have been musing? mustn't she have been musing? mustn't we have been musing? mustn't you have been musing? mustn't they have been musing?