English verb conjugation
MUST WEIGH

Regular verb: weigh - weighed - weighed

Affirmation

Simple form	V-ing form
I must weigh you must weigh she must weigh we must weigh you must weigh they must weigh	I must be weighing you must be weighing she 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 she 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 she 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 mustn't weigh you mustn't weigh she mustn't weigh we mustn't weigh you mustn't weigh they mustn't weigh	I mustn't be weighing you mustn't be weighing she mustn't be weighing we mustn't be weighing you mustn't be weighing they mustn't be weighing
Perfect	V-ing perfect
I mustn't have weighed you mustn't have weighed she mustn't have weighed we mustn't have weighed you mustn't have weighed they mustn't have weighed	I mustn't have been weighing you mustn't have been weighing she mustn't have been weighing we mustn't have been weighing you mustn't have been weighing they mustn't have been weighing

Interrogative form

Simple form	V-ing form
must I weigh? must you weigh? must she weigh? must we weigh? must you weigh? must they weigh?	must I be weighing? must you be weighing? must she 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 she 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 she 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
mustn't I weigh? mustn't you weigh? mustn't she weigh? mustn't we weigh? mustn't you weigh? mustn't they weigh?	mustn't I be weighing? mustn't you be weighing? mustn't she be weighing? mustn't we be weighing? mustn't you be weighing? mustn't they be weighing?
Perfect	V-ing perfect
mustn't I have weighed? mustn't you have weighed? mustn't she have weighed? mustn't we have weighed? mustn't you have weighed? mustn't they have weighed?	mustn't I have been weighing? mustn't you have been weighing? mustn't she have been weighing? mustn't we have been weighing? mustn't you have been weighing? mustn't they have been weighing?