English verb conjugation
MUST ROAST

Regular verb: roast - roasted - roasted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I mustn't roast you mustn't roast she mustn't roast we mustn't roast you mustn't roast they mustn't roast	I mustn't be roasting you mustn't be roasting she mustn't be roasting we mustn't be roasting you mustn't be roasting they mustn't be roasting
Perfect	V-ing perfect
I mustn't have roasted you mustn't have roasted she mustn't have roasted we mustn't have roasted you mustn't have roasted they mustn't have roasted	I mustn't have been roasting you mustn't have been roasting she mustn't have been roasting we mustn't have been roasting you mustn't have been roasting they mustn't have been roasting

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
mustn't I roast? mustn't you roast? mustn't she roast? mustn't we roast? mustn't you roast? mustn't they roast?	mustn't I be roasting? mustn't you be roasting? mustn't she be roasting? mustn't we be roasting? mustn't you be roasting? mustn't they be roasting?
Perfect	V-ing perfect
mustn't I have roasted? mustn't you have roasted? mustn't she have roasted? mustn't we have roasted? mustn't you have roasted? mustn't they have roasted?	mustn't I have been roasting? mustn't you have been roasting? mustn't she have been roasting? mustn't we have been roasting? mustn't you have been roasting? mustn't they have been roasting?