English verb conjugation
MUST EXSERT

Regular verb: exsert - exserted - exserted

Affirmation

Simple form	V-ing form
I must exsert you must exsert she must exsert we must exsert you must exsert they must exsert	I must be exserting you must be exserting she must be exserting we must be exserting you must be exserting they must be exserting
Perfect	V-ing perfect
I must have exserted you must have exserted she must have exserted we must have exserted you must have exserted they must have exserted	I must have been exserting you must have been exserting she must have been exserting we must have been exserting you must have been exserting they must have been exserting

Negation

Simple form	V-ing form
I mustn't exsert you mustn't exsert she mustn't exsert we mustn't exsert you mustn't exsert they mustn't exsert	I mustn't be exserting you mustn't be exserting she mustn't be exserting we mustn't be exserting you mustn't be exserting they mustn't be exserting
Perfect	V-ing perfect
I mustn't have exserted you mustn't have exserted she mustn't have exserted we mustn't have exserted you mustn't have exserted they mustn't have exserted	I mustn't have been exserting you mustn't have been exserting she mustn't have been exserting we mustn't have been exserting you mustn't have been exserting they mustn't have been exserting

Interrogative form

Simple form	V-ing form
must I exsert? must you exsert? must she exsert? must we exsert? must you exsert? must they exsert?	must I be exserting? must you be exserting? must she be exserting? must we be exserting? must you be exserting? must they be exserting?
Perfect	V-ing perfect
must I have exserted? must you have exserted? must she have exserted? must we have exserted? must you have exserted? must they have exserted?	must I have been exserting? must you have been exserting? must she have been exserting? must we have been exserting? must you have been exserting? must they have been exserting?

Interro-negative form

Simple form	V-ing form
mustn't I exsert? mustn't you exsert? mustn't she exsert? mustn't we exsert? mustn't you exsert? mustn't they exsert?	mustn't I be exserting? mustn't you be exserting? mustn't she be exserting? mustn't we be exserting? mustn't you be exserting? mustn't they be exserting?
Perfect	V-ing perfect
mustn't I have exserted? mustn't you have exserted? mustn't she have exserted? mustn't we have exserted? mustn't you have exserted? mustn't they have exserted?	mustn't I have been exserting? mustn't you have been exserting? mustn't she have been exserting? mustn't we have been exserting? mustn't you have been exserting? mustn't they have been exserting?