English verb conjugation
MUST BABY-SIT

Regular verb: baby-sit - baby-sitted - baby-sitted

Affirmation

Simple form	V-ing form
I must baby-sit you must baby-sit he must baby-sit we must baby-sit you must baby-sit they must baby-sit	I must be baby-sitting you must be baby-sitting he must be baby-sitting we must be baby-sitting you must be baby-sitting they must be baby-sitting
Perfect	V-ing perfect
I must have baby-sitted you must have baby-sitted he must have baby-sitted we must have baby-sitted you must have baby-sitted they must have baby-sitted	I must have been baby-sitting you must have been baby-sitting he must have been baby-sitting we must have been baby-sitting you must have been baby-sitting they must have been baby-sitting

Negation

Simple form	V-ing form
I mustn't baby-sit you mustn't baby-sit he mustn't baby-sit we mustn't baby-sit you mustn't baby-sit they mustn't baby-sit	I mustn't be baby-sitting you mustn't be baby-sitting he mustn't be baby-sitting we mustn't be baby-sitting you mustn't be baby-sitting they mustn't be baby-sitting
Perfect	V-ing perfect
I mustn't have baby-sitted you mustn't have baby-sitted he mustn't have baby-sitted we mustn't have baby-sitted you mustn't have baby-sitted they mustn't have baby-sitted	I mustn't have been baby-sitting you mustn't have been baby-sitting he mustn't have been baby-sitting we mustn't have been baby-sitting you mustn't have been baby-sitting they mustn't have been baby-sitting

Interrogative form

Simple form	V-ing form
must I baby-sit? must you baby-sit? must he baby-sit? must we baby-sit? must you baby-sit? must they baby-sit?	must I be baby-sitting? must you be baby-sitting? must he be baby-sitting? must we be baby-sitting? must you be baby-sitting? must they be baby-sitting?
Perfect	V-ing perfect
must I have baby-sitted? must you have baby-sitted? must he have baby-sitted? must we have baby-sitted? must you have baby-sitted? must they have baby-sitted?	must I have been baby-sitting? must you have been baby-sitting? must he have been baby-sitting? must we have been baby-sitting? must you have been baby-sitting? must they have been baby-sitting?

Interro-negative form

Simple form	V-ing form
mustn't I baby-sit? mustn't you baby-sit? mustn't he baby-sit? mustn't we baby-sit? mustn't you baby-sit? mustn't they baby-sit?	mustn't I be baby-sitting? mustn't you be baby-sitting? mustn't he be baby-sitting? mustn't we be baby-sitting? mustn't you be baby-sitting? mustn't they be baby-sitting?
Perfect	V-ing perfect
mustn't I have baby-sitted? mustn't you have baby-sitted? mustn't he have baby-sitted? mustn't we have baby-sitted? mustn't you have baby-sitted? mustn't they have baby-sitted?	mustn't I have been baby-sitting? mustn't you have been baby-sitting? mustn't he have been baby-sitting? mustn't we have been baby-sitting? mustn't you have been baby-sitting? mustn't they have been baby-sitting?