English verb conjugation
MUST PROPOSE

Regular verb: propose - proposed - proposed

Affirmation

Simple form	V-ing form
I must propose you must propose she must propose we must propose you must propose they must propose	I must be proposing you must be proposing she must be proposing we must be proposing you must be proposing they must be proposing
Perfect	V-ing perfect
I must have proposed you must have proposed she must have proposed we must have proposed you must have proposed they must have proposed	I must have been proposing you must have been proposing she must have been proposing we must have been proposing you must have been proposing they must have been proposing

Negation

Simple form	V-ing form
I mustn't propose you mustn't propose she mustn't propose we mustn't propose you mustn't propose they mustn't propose	I mustn't be proposing you mustn't be proposing she mustn't be proposing we mustn't be proposing you mustn't be proposing they mustn't be proposing
Perfect	V-ing perfect
I mustn't have proposed you mustn't have proposed she mustn't have proposed we mustn't have proposed you mustn't have proposed they mustn't have proposed	I mustn't have been proposing you mustn't have been proposing she mustn't have been proposing we mustn't have been proposing you mustn't have been proposing they mustn't have been proposing

Interrogative form

Simple form	V-ing form
must I propose? must you propose? must she propose? must we propose? must you propose? must they propose?	must I be proposing? must you be proposing? must she be proposing? must we be proposing? must you be proposing? must they be proposing?
Perfect	V-ing perfect
must I have proposed? must you have proposed? must she have proposed? must we have proposed? must you have proposed? must they have proposed?	must I have been proposing? must you have been proposing? must she have been proposing? must we have been proposing? must you have been proposing? must they have been proposing?

Interro-negative form

Simple form	V-ing form
mustn't I propose? mustn't you propose? mustn't she propose? mustn't we propose? mustn't you propose? mustn't they propose?	mustn't I be proposing? mustn't you be proposing? mustn't she be proposing? mustn't we be proposing? mustn't you be proposing? mustn't they be proposing?
Perfect	V-ing perfect
mustn't I have proposed? mustn't you have proposed? mustn't she have proposed? mustn't we have proposed? mustn't you have proposed? mustn't they have proposed?	mustn't I have been proposing? mustn't you have been proposing? mustn't she have been proposing? mustn't we have been proposing? mustn't you have been proposing? mustn't they have been proposing?