must propose
Verbo regular: propose - proposed- proposed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must propose
you must propose
he must propose
we must propose
you must propose
they must propose 	I must be proposing
you must be proposing
he must be proposing
we must be proposing
you must be proposing
they must be proposing	I must have proposed
you must have proposed
he 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
he must have been proposing
we must have been proposing
you must have been proposing
they must have been proposing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't propose
you mustn't propose
he 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
he 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
he 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
he mustn't have been proposing
we mustn't have been proposing
you mustn't have been proposing
they mustn't have been proposing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I propose?
must you propose?
must he propose?
must we propose?
must you propose?
must they propose? 	must I be proposing?
must you be proposing?
must he be proposing?
must we be proposing?
must you be proposing?
must they be proposing? 	must I have proposed?
must you have proposed?
must he 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 he have been proposing?
must we have been proposing?
must you have been proposing?
must they have been proposing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I propose?
mustn't you propose?
mustn't he 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 he 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 he 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 he have been proposing?
mustn't we have been proposing?
mustn't you have been proposing?
mustn't they have been proposing?