English verb conjugation
MUST BURST

Irregular verb: burst - burst - burst

Affirmation

Simple form	V-ing form
I must burst you must burst she must burst we must burst you must burst they must burst	I must be bursting you must be bursting she must be bursting we must be bursting you must be bursting they must be bursting
Perfect	V-ing perfect
I must have burst you must have burst she must have burst we must have burst you must have burst they must have burst	I must have been bursting you must have been bursting she must have been bursting we must have been bursting you must have been bursting they must have been bursting

Negation

Simple form	V-ing form
I must not burst you must not burst she must not burst we must not burst you must not burst they must not burst	I must not be bursting you must not be bursting she must not be bursting we must not be bursting you must not be bursting they must not be bursting
Perfect	V-ing perfect
I must not have burst you must not have burst she must not have burst we must not have burst you must not have burst they must not have burst	I must not have been bursting you must not have been bursting she must not have been bursting we must not have been bursting you must not have been bursting they must not have been bursting

Interrogative form

Simple form	V-ing form
must I burst? must you burst? must she burst? must we burst? must you burst? must they burst?	must I be bursting? must you be bursting? must she be bursting? must we be bursting? must you be bursting? must they be bursting?
Perfect	V-ing perfect
must I have burst? must you have burst? must she have burst? must we have burst? must you have burst? must they have burst?	must I have been bursting? must you have been bursting? must she have been bursting? must we have been bursting? must you have been bursting? must they have been bursting?

Interro-negative form

Simple form	V-ing form
must I not burst? must you not burst? must she not burst? must we not burst? must you not burst? must they not burst?	must I not be bursting? must you not be bursting? must she not be bursting? must we not be bursting? must you not be bursting? must they not be bursting?
Perfect	V-ing perfect
must I not have burst? must you not have burst? must she not have burst? must we not have burst? must you not have burst? must they not have burst?	must I not have been bursting? must you not have been bursting? must she not have been bursting? must we not have been bursting? must you not have been bursting? must they not have been bursting?