must saw
Verbo irregular: saw - sawed- sawed, sawn

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must saw
you must saw
he must saw
we must saw
you must saw
they must saw 	I must be sawing
you must be sawing
he must be sawing
we must be sawing
you must be sawing
they must be sawing	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	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not saw
you must not saw
he must not saw
we must not saw
you must not saw
they must not saw 	I must not be sawing
you must not be sawing
he must not be sawing
we must not be sawing
you must not be sawing
they must not be sawing	I must not have sawed, sawn
you must not have sawed, sawn
he must not have sawed, sawn
we must not have sawed, sawn
you must not have sawed, sawn
they must not have sawed, sawn	I must not have been sawing
you must not have been sawing
he must not have been sawing
we must not have been sawing
you must not have been sawing
they must not have been sawing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I saw?
must you saw?
must he saw?
must we saw?
must you saw?
must they saw? 	must I be sawing?
must you be sawing?
must he be sawing?
must we be sawing?
must you be sawing?
must they be sawing? 	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? 	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not saw?
must you not saw?
must he not saw?
must we not saw?
must you not saw?
must they not saw? 	must I not be sawing?
must you not be sawing?
must he not be sawing?
must we not be sawing?
must you not be sawing?
must they not be sawing? 	must I not have sawed, sawn?
must you not have sawed, sawn?
must he not have sawed, sawn?
must we not have sawed, sawn?
must you not have sawed, sawn?
must they not have sawed, sawn? 	must I not have been sawing?
must you not have been sawing?
must he not have been sawing?
must we not have been sawing?
must you not have been sawing?
must they not have been sawing?