I must saw you must saw he must saw we must saw you must saw they must saw
Forma con V-ing
I must be sawing you must be sawing he must be sawing we must be sawing you must be sawing they must be sawing
Perfecto
I must have sawed, sawn you must have sawed, sawn he must have sawed, sawn we must have sawed, sawn you must have sawed, sawn they must have sawed, sawn
Perfecto con V-ing
I must have been sawing you must have been sawing he must have been sawing we must have been sawing you must have been sawing they must have been sawing
Negación
Forma simple
I mustn't saw you mustn't saw he mustn't saw we mustn't saw you mustn't saw they mustn't saw
Forma con V-ing
I mustn't be sawing you mustn't be sawing he mustn't be sawing we mustn't be sawing you mustn't be sawing they mustn't be sawing
Perfecto
I mustn't have sawed, sawn you mustn't have sawed, sawn he mustn't have sawed, sawn we mustn't have sawed, sawn you mustn't have sawed, sawn they mustn't have sawed, sawn
Perfecto con V-ing
I mustn't have been sawing you mustn't have been sawing he mustn't have been sawing we mustn't have been sawing you mustn't have been sawing they mustn't have been sawing
Forma interrogativa
Forma simple
must I saw? must you saw? must he saw? must we saw? must you saw? must they saw?
Forma con V-ing
must I be sawing? must you be sawing? must he be sawing? must we be sawing? must you be sawing? must they be sawing?
Perfecto
must I have sawed, sawn? must you have sawed, sawn? must he have sawed, sawn? must we have sawed, sawn? must you have sawed, sawn? must they have sawed, sawn?
Perfecto con V-ing
must I have been sawing? must you have been sawing? must he have been sawing? must we have been sawing? must you have been sawing? must they have been sawing?
Forma interro-negativa
Forma simple
mustn't I saw? mustn't you saw? mustn't he saw? mustn't we saw? mustn't you saw? mustn't they saw?
Forma con V-ing
mustn't I be sawing? mustn't you be sawing? mustn't he be sawing? mustn't we be sawing? mustn't you be sawing? mustn't they be sawing?
Perfecto
mustn't I have sawed, sawn? mustn't you have sawed, sawn? mustn't he have sawed, sawn? mustn't we have sawed, sawn? mustn't you have sawed, sawn? mustn't they have sawed, sawn?
Perfecto con V-ing
mustn't I have been sawing? mustn't you have been sawing? mustn't he have been sawing? mustn't we have been sawing? mustn't you have been sawing? mustn't they have been sawing?