English verb conjugation
MUST WALTZ

Regular verb: waltz - waltzed - waltzed

Affirmation

Simple form	V-ing form
I must waltz you must waltz he must waltz we must waltz you must waltz they must waltz	I must be waltzing you must be waltzing he must be waltzing we must be waltzing you must be waltzing they must be waltzing
Perfect	V-ing perfect
I must have waltzed you must have waltzed he must have waltzed we must have waltzed you must have waltzed they must have waltzed	I must have been waltzing you must have been waltzing he must have been waltzing we must have been waltzing you must have been waltzing they must have been waltzing

Negation

Simple form	V-ing form
I must not waltz you must not waltz he must not waltz we must not waltz you must not waltz they must not waltz	I must not be waltzing you must not be waltzing he must not be waltzing we must not be waltzing you must not be waltzing they must not be waltzing
Perfect	V-ing perfect
I must not have waltzed you must not have waltzed he must not have waltzed we must not have waltzed you must not have waltzed they must not have waltzed	I must not have been waltzing you must not have been waltzing he must not have been waltzing we must not have been waltzing you must not have been waltzing they must not have been waltzing

Interrogative form

Simple form	V-ing form
must I waltz? must you waltz? must he waltz? must we waltz? must you waltz? must they waltz?	must I be waltzing? must you be waltzing? must he be waltzing? must we be waltzing? must you be waltzing? must they be waltzing?
Perfect	V-ing perfect
must I have waltzed? must you have waltzed? must he have waltzed? must we have waltzed? must you have waltzed? must they have waltzed?	must I have been waltzing? must you have been waltzing? must he have been waltzing? must we have been waltzing? must you have been waltzing? must they have been waltzing?

Interro-negative form

Simple form	V-ing form
must I not waltz? must you not waltz? must he not waltz? must we not waltz? must you not waltz? must they not waltz?	must I not be waltzing? must you not be waltzing? must he not be waltzing? must we not be waltzing? must you not be waltzing? must they not be waltzing?
Perfect	V-ing perfect
must I not have waltzed? must you not have waltzed? must he not have waltzed? must we not have waltzed? must you not have waltzed? must they not have waltzed?	must I not have been waltzing? must you not have been waltzing? must he not have been waltzing? must we not have been waltzing? must you not have been waltzing? must they not have been waltzing?