I must forget you must forget he must forget we must forget you must forget they must forget
Forma com V-ing
I must be forgetting you must be forgetting he must be forgetting we must be forgetting you must be forgetting they must be forgetting
Perfeito
I must have forgotten you must have forgotten he must have forgotten we must have forgotten you must have forgotten they must have forgotten
Perfeito com V-ing
I must have been forgetting you must have been forgetting he must have been forgetting we must have been forgetting you must have been forgetting they must have been forgetting
Negação
Forma simple
I must not forget you must not forget he must not forget we must not forget you must not forget they must not forget
Forma com V-ing
I must not be forgetting you must not be forgetting he must not be forgetting we must not be forgetting you must not be forgetting they must not be forgetting
Perfeito
I must not have forgotten you must not have forgotten he must not have forgotten we must not have forgotten you must not have forgotten they must not have forgotten
Perfeito com V-ing
I must not have been forgetting you must not have been forgetting he 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
must I forget? must you forget? must he forget? must we forget? must you forget? must they forget?
Forma com V-ing
must I be forgetting? must you be forgetting? must he be forgetting? must we be forgetting? must you be forgetting? must they be forgetting?
Perfeito
must I have forgotten? must you have forgotten? must he have forgotten? must we have forgotten? must you have forgotten? must they have forgotten?
Perfeito com V-ing
must I have been forgetting? must you have been forgetting? must he have been forgetting? must we have been forgetting? must you have been forgetting? must they have been forgetting?
Forma interro-Negação
Forma simple
must I not forget? must you not forget? must he not forget? must we not forget? must you not forget? must they not forget?
Forma com V-ing
must I not be forgetting? must you not be forgetting? must he not be forgetting? must we not be forgetting? must you not be forgetting? must they not be forgetting?
Perfeito
must I not have forgotten? must you not have forgotten? must he not have forgotten? must we not have forgotten? must you not have forgotten? must they not have forgotten?
Perfeito com V-ing
must I not have been forgetting? must you not have been forgetting? must he not have been forgetting? must we not have been forgetting? must you not have been forgetting? must they not have been forgetting?