must propose
Regular verb: propose - proposed- proposed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?