must roast
Verbo regular: roast - roasted- roasted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must roast
you must roast
she must roast
we must roast
you must roast
they must roast 	I must be roasting
you must be roasting
she must be roasting
we must be roasting
you must be roasting
they must be roasting	I must have roasted
you must have roasted
she must have roasted
we must have roasted
you must have roasted
they must have roasted	I must have been roasting
you must have been roasting
she must have been roasting
we must have been roasting
you must have been roasting
they must have been roasting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not roast
you must not roast
she must not roast
we must not roast
you must not roast
they must not roast 	I must not be roasting
you must not be roasting
she must not be roasting
we must not be roasting
you must not be roasting
they must not be roasting	I must not have roasted
you must not have roasted
she must not have roasted
we must not have roasted
you must not have roasted
they must not have roasted	I must not have been roasting
you must not have been roasting
she must not have been roasting
we must not have been roasting
you must not have been roasting
they must not have been roasting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I roast?
must you roast?
must she roast?
must we roast?
must you roast?
must they roast? 	must I be roasting?
must you be roasting?
must she be roasting?
must we be roasting?
must you be roasting?
must they be roasting? 	must I have roasted?
must you have roasted?
must she have roasted?
must we have roasted?
must you have roasted?
must they have roasted? 	must I have been roasting?
must you have been roasting?
must she have been roasting?
must we have been roasting?
must you have been roasting?
must they have been roasting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not roast?
must you not roast?
must she not roast?
must we not roast?
must you not roast?
must they not roast? 	must I not be roasting?
must you not be roasting?
must she not be roasting?
must we not be roasting?
must you not be roasting?
must they not be roasting? 	must I not have roasted?
must you not have roasted?
must she not have roasted?
must we not have roasted?
must you not have roasted?
must they not have roasted? 	must I not have been roasting?
must you not have been roasting?
must she not have been roasting?
must we not have been roasting?
must you not have been roasting?
must they not have been roasting?