English verb conjugation
MUST BREAK

Irregular verb: break - broke - broken

Affirmation

Simple form	V-ing form
I must break you must break he must break we must break you must break they must break	I must be breaking you must be breaking he must be breaking we must be breaking you must be breaking they must be breaking
Perfect	V-ing perfect
I must have broken you must have broken he must have broken we must have broken you must have broken they must have broken	I must have been breaking you must have been breaking he must have been breaking we must have been breaking you must have been breaking they must have been breaking

Negation

Simple form	V-ing form
I must not break you must not break he must not break we must not break you must not break they must not break	I must not be breaking you must not be breaking he must not be breaking we must not be breaking you must not be breaking they must not be breaking
Perfect	V-ing perfect
I must not have broken you must not have broken he must not have broken we must not have broken you must not have broken they must not have broken	I must not have been breaking you must not have been breaking he must not have been breaking we must not have been breaking you must not have been breaking they must not have been breaking

Interrogative form

Simple form	V-ing form
must I break? must you break? must he break? must we break? must you break? must they break?	must I be breaking? must you be breaking? must he be breaking? must we be breaking? must you be breaking? must they be breaking?
Perfect	V-ing perfect
must I have broken? must you have broken? must he have broken? must we have broken? must you have broken? must they have broken?	must I have been breaking? must you have been breaking? must he have been breaking? must we have been breaking? must you have been breaking? must they have been breaking?

Interro-negative form

Simple form	V-ing form
must I not break? must you not break? must he not break? must we not break? must you not break? must they not break?	must I not be breaking? must you not be breaking? must he not be breaking? must we not be breaking? must you not be breaking? must they not be breaking?
Perfect	V-ing perfect
must I not have broken? must you not have broken? must he not have broken? must we not have broken? must you not have broken? must they not have broken?	must I not have been breaking? must you not have been breaking? must he not have been breaking? must we not have been breaking? must you not have been breaking? must they not have been breaking?