I must propose you must propose he must propose we must propose you must propose they must propose
V-ing form
I must be proposing you must be proposing he must be proposing we must be proposing you must be proposing they must be proposing
Perfect
I must have proposed you must have proposed he must have proposed we must have proposed you must have proposed they must have proposed
V-ing perfect
I must have been proposing you must have been proposing he must have been proposing we must have been proposing you must have been proposing they must have been proposing
Negation
Simple form
I must not propose you must not propose he must not propose we must not propose you must not propose they must not propose
V-ing form
I must not be proposing you must not be proposing he must not be proposing we must not be proposing you must not be proposing they must not be proposing
Perfect
I must not have proposed you must not have proposed he must not have proposed we must not have proposed you must not have proposed they must not have proposed
V-ing perfect
I must not have been proposing you must not have been proposing he must not have been proposing we must not have been proposing you must not have been proposing they must not have been proposing
Interrogative form
Simple form
must I propose? must you propose? must he propose? must we propose? must you propose? must they propose?
V-ing form
must I be proposing? must you be proposing? must he be proposing? must we be proposing? must you be proposing? must they be proposing?
Perfect
must I have proposed? must you have proposed? must he have proposed? must we have proposed? must you have proposed? must they have proposed?
V-ing perfect
must I have been proposing? must you have been proposing? must he have been proposing? must we have been proposing? must you have been proposing? must they have been proposing?
Interro-negative form
Simple form
must I not propose? must you not propose? must he not propose? must we not propose? must you not propose? must they not propose?
V-ing form
must I not be proposing? must you not be proposing? must he not be proposing? must we not be proposing? must you not be proposing? must they not be proposing?
Perfect
must I not have proposed? must you not have proposed? must he not have proposed? must we not have proposed? must you not have proposed? must they not have proposed?
V-ing perfect
must I not have been proposing? must you not have been proposing? must he not have been proposing? must we not have been proposing? must you not have been proposing? must they not have been proposing?