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