English verb conjugation
MUST PREWEIGH

Regular verb: preweigh - preweighed - preweighed

Affirmation

Simple form	V-ing form
I must preweigh you must preweigh he must preweigh we must preweigh you must preweigh they must preweigh	I must be preweighing you must be preweighing he must be preweighing we must be preweighing you must be preweighing they must be preweighing
Perfect	V-ing perfect
I must have preweighed you must have preweighed he must have preweighed we must have preweighed you must have preweighed they must have preweighed	I must have been preweighing you must have been preweighing he must have been preweighing we must have been preweighing you must have been preweighing they must have been preweighing

Negation

Simple form	V-ing form
I mustn't preweigh you mustn't preweigh he mustn't preweigh we mustn't preweigh you mustn't preweigh they mustn't preweigh	I mustn't be preweighing you mustn't be preweighing he mustn't be preweighing we mustn't be preweighing you mustn't be preweighing they mustn't be preweighing
Perfect	V-ing perfect
I mustn't have preweighed you mustn't have preweighed he mustn't have preweighed we mustn't have preweighed you mustn't have preweighed they mustn't have preweighed	I mustn't have been preweighing you mustn't have been preweighing he mustn't have been preweighing we mustn't have been preweighing you mustn't have been preweighing they mustn't have been preweighing

Interrogative form

Simple form	V-ing form
must I preweigh? must you preweigh? must he preweigh? must we preweigh? must you preweigh? must they preweigh?	must I be preweighing? must you be preweighing? must he be preweighing? must we be preweighing? must you be preweighing? must they be preweighing?
Perfect	V-ing perfect
must I have preweighed? must you have preweighed? must he have preweighed? must we have preweighed? must you have preweighed? must they have preweighed?	must I have been preweighing? must you have been preweighing? must he have been preweighing? must we have been preweighing? must you have been preweighing? must they have been preweighing?

Interro-negative form

Simple form	V-ing form
mustn't I preweigh? mustn't you preweigh? mustn't he preweigh? mustn't we preweigh? mustn't you preweigh? mustn't they preweigh?	mustn't I be preweighing? mustn't you be preweighing? mustn't he be preweighing? mustn't we be preweighing? mustn't you be preweighing? mustn't they be preweighing?
Perfect	V-ing perfect
mustn't I have preweighed? mustn't you have preweighed? mustn't he have preweighed? mustn't we have preweighed? mustn't you have preweighed? mustn't they have preweighed?	mustn't I have been preweighing? mustn't you have been preweighing? mustn't he have been preweighing? mustn't we have been preweighing? mustn't you have been preweighing? mustn't they have been preweighing?