English verb conjugation
MUST BABYSIT

Irregular verb: babysit - babysat - babysat

Affirmation

Simple form	V-ing form
I must babysit you must babysit he must babysit we must babysit you must babysit they must babysit	I must be babysiting you must be babysiting he must be babysiting we must be babysiting you must be babysiting they must be babysiting
Perfect	V-ing perfect
I must have babysat you must have babysat he must have babysat we must have babysat you must have babysat they must have babysat	I must have been babysiting you must have been babysiting he must have been babysiting we must have been babysiting you must have been babysiting they must have been babysiting

Negation

Simple form	V-ing form
I mustn't babysit you mustn't babysit he mustn't babysit we mustn't babysit you mustn't babysit they mustn't babysit	I mustn't be babysiting you mustn't be babysiting he mustn't be babysiting we mustn't be babysiting you mustn't be babysiting they mustn't be babysiting
Perfect	V-ing perfect
I mustn't have babysat you mustn't have babysat he mustn't have babysat we mustn't have babysat you mustn't have babysat they mustn't have babysat	I mustn't have been babysiting you mustn't have been babysiting he mustn't have been babysiting we mustn't have been babysiting you mustn't have been babysiting they mustn't have been babysiting

Interrogative form

Simple form	V-ing form
must I babysit? must you babysit? must he babysit? must we babysit? must you babysit? must they babysit?	must I be babysiting? must you be babysiting? must he be babysiting? must we be babysiting? must you be babysiting? must they be babysiting?
Perfect	V-ing perfect
must I have babysat? must you have babysat? must he have babysat? must we have babysat? must you have babysat? must they have babysat?	must I have been babysiting? must you have been babysiting? must he have been babysiting? must we have been babysiting? must you have been babysiting? must they have been babysiting?

Interro-negative form

Simple form	V-ing form
mustn't I babysit? mustn't you babysit? mustn't he babysit? mustn't we babysit? mustn't you babysit? mustn't they babysit?	mustn't I be babysiting? mustn't you be babysiting? mustn't he be babysiting? mustn't we be babysiting? mustn't you be babysiting? mustn't they be babysiting?
Perfect	V-ing perfect
mustn't I have babysat? mustn't you have babysat? mustn't he have babysat? mustn't we have babysat? mustn't you have babysat? mustn't they have babysat?	mustn't I have been babysiting? mustn't you have been babysiting? mustn't he have been babysiting? mustn't we have been babysiting? mustn't you have been babysiting? mustn't they have been babysiting?