English verb conjugation
MUST EXSERT

Regular verb: exsert - exserted - exserted

Affirmation

Simple form	V-ing form
I must exsert you must exsert he must exsert we must exsert you must exsert they must exsert	I must be exserting you must be exserting he 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 he 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 he 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 must not exsert you must not exsert he must not exsert we must not exsert you must not exsert they must not exsert	I must not be exserting you must not be exserting he must not be exserting we must not be exserting you must not be exserting they must not be exserting
Perfect	V-ing perfect
I must not have exserted you must not have exserted he must not have exserted we must not have exserted you must not have exserted they must not have exserted	I must not have been exserting you must not have been exserting he must not have been exserting we must not have been exserting you must not have been exserting they must not have been exserting

Interrogative form

Simple form	V-ing form
must I exsert? must you exsert? must he exsert? must we exsert? must you exsert? must they exsert?	must I be exserting? must you be exserting? must he 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 he 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 he 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
must I not exsert? must you not exsert? must he not exsert? must we not exsert? must you not exsert? must they not exsert?	must I not be exserting? must you not be exserting? must he not be exserting? must we not be exserting? must you not be exserting? must they not be exserting?
Perfect	V-ing perfect
must I not have exserted? must you not have exserted? must he not have exserted? must we not have exserted? must you not have exserted? must they not have exserted?	must I not have been exserting? must you not have been exserting? must he not have been exserting? must we not have been exserting? must you not have been exserting? must they not have been exserting?