must forget
Verbo irregular: forget - forgot- forgotten

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not forget
you must not forget
she must not forget
we must not forget
you must not forget
they must not forget 	I must not be forgetting
you must not be forgetting
she must not be forgetting
we must not be forgetting
you must not be forgetting
they must not be forgetting	I must not have forgotten
you must not have forgotten
she must not have forgotten
we must not have forgotten
you must not have forgotten
they must not have forgotten	I must not have been forgetting
you must not have been forgetting
she must not have been forgetting
we must not have been forgetting
you must not have been forgetting
they must not have been forgetting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not forget?
must you not forget?
must she not forget?
must we not forget?
must you not forget?
must they not forget? 	must I not be forgetting?
must you not be forgetting?
must she not be forgetting?
must we not be forgetting?
must you not be forgetting?
must they not be forgetting? 	must I not have forgotten?
must you not have forgotten?
must she not have forgotten?
must we not have forgotten?
must you not have forgotten?
must they not have forgotten? 	must I not have been forgetting?
must you not have been forgetting?
must she not have been forgetting?
must we not have been forgetting?
must you not have been forgetting?
must they not have been forgetting?