English verb conjugation
MUST WEIGH

Regular verb: weigh - weighed - weighed

Affirmation

Simple form	V-ing form
I must weigh you must weigh he must weigh we must weigh you must weigh they must weigh	I must be weighing you must be weighing he must be weighing we must be weighing you must be weighing they must be weighing
Perfect	V-ing perfect
I must have weighed you must have weighed he must have weighed we must have weighed you must have weighed they must have weighed	I must have been weighing you must have been weighing he must have been weighing we must have been weighing you must have been weighing they must have been weighing

Negation

Simple form	V-ing form
I must not weigh you must not weigh he must not weigh we must not weigh you must not weigh they must not weigh	I must not be weighing you must not be weighing he must not be weighing we must not be weighing you must not be weighing they must not be weighing
Perfect	V-ing perfect
I must not have weighed you must not have weighed he must not have weighed we must not have weighed you must not have weighed they must not have weighed	I must not have been weighing you must not have been weighing he must not have been weighing we must not have been weighing you must not have been weighing they must not have been weighing

Interrogative form

Simple form	V-ing form
must I weigh? must you weigh? must he weigh? must we weigh? must you weigh? must they weigh?	must I be weighing? must you be weighing? must he be weighing? must we be weighing? must you be weighing? must they be weighing?
Perfect	V-ing perfect
must I have weighed? must you have weighed? must he have weighed? must we have weighed? must you have weighed? must they have weighed?	must I have been weighing? must you have been weighing? must he have been weighing? must we have been weighing? must you have been weighing? must they have been weighing?

Interro-negative form

Simple form	V-ing form
must I not weigh? must you not weigh? must he not weigh? must we not weigh? must you not weigh? must they not weigh?	must I not be weighing? must you not be weighing? must he not be weighing? must we not be weighing? must you not be weighing? must they not be weighing?
Perfect	V-ing perfect
must I not have weighed? must you not have weighed? must he not have weighed? must we not have weighed? must you not have weighed? must they not have weighed?	must I not have been weighing? must you not have been weighing? must he not have been weighing? must we not have been weighing? must you not have been weighing? must they not have been weighing?