must forget
Verbo irregular: forget - forgot- forgotten

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must forget
you must forget
she must forget
we must forget
you must forget
they must forget 	I must be forgetting
you must be forgetting
she must be forgetting
we must be forgetting
you must be forgetting
they must be forgetting	I must have forgotten
you must have forgotten
she must have forgotten
we must have forgotten
you must have forgotten
they must have forgotten	I must have been forgetting
you must have been forgetting
she must have been forgetting
we must have been forgetting
you must have been forgetting
they must have been forgetting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't forget
you mustn't forget
she mustn't forget
we mustn't forget
you mustn't forget
they mustn't forget 	I mustn't be forgetting
you mustn't be forgetting
she mustn't be forgetting
we mustn't be forgetting
you mustn't be forgetting
they mustn't be forgetting	I mustn't have forgotten
you mustn't have forgotten
she mustn't have forgotten
we mustn't have forgotten
you mustn't have forgotten
they mustn't have forgotten	I mustn't have been forgetting
you mustn't have been forgetting
she mustn't have been forgetting
we mustn't have been forgetting
you mustn't have been forgetting
they mustn't have been forgetting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I forget?
must you forget?
must she forget?
must we forget?
must you forget?
must they forget? 	must I be forgetting?
must you be forgetting?
must she be forgetting?
must we be forgetting?
must you be forgetting?
must they be forgetting? 	must I have forgotten?
must you have forgotten?
must she have forgotten?
must we have forgotten?
must you have forgotten?
must they have forgotten? 	must I have been forgetting?
must you have been forgetting?
must she have been forgetting?
must we have been forgetting?
must you have been forgetting?
must they have been forgetting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I forget?
mustn't you forget?
mustn't she forget?
mustn't we forget?
mustn't you forget?
mustn't they forget? 	mustn't I be forgetting?
mustn't you be forgetting?
mustn't she be forgetting?
mustn't we be forgetting?
mustn't you be forgetting?
mustn't they be forgetting? 	mustn't I have forgotten?
mustn't you have forgotten?
mustn't she have forgotten?
mustn't we have forgotten?
mustn't you have forgotten?
mustn't they have forgotten? 	mustn't I have been forgetting?
mustn't you have been forgetting?
mustn't she have been forgetting?
mustn't we have been forgetting?
mustn't you have been forgetting?
mustn't they have been forgetting?