English verb conjugation
MUST ROLL

Regular verb: roll - rolled - rolled

Affirmation

Simple form	V-ing form
I must roll you must roll he must roll we must roll you must roll they must roll	I must be rolling you must be rolling he must be rolling we must be rolling you must be rolling they must be rolling
Perfect	V-ing perfect
I must have rolled you must have rolled he must have rolled we must have rolled you must have rolled they must have rolled	I must have been rolling you must have been rolling he must have been rolling we must have been rolling you must have been rolling they must have been rolling

Negation

Simple form	V-ing form
I mustn't roll you mustn't roll he mustn't roll we mustn't roll you mustn't roll they mustn't roll	I mustn't be rolling you mustn't be rolling he mustn't be rolling we mustn't be rolling you mustn't be rolling they mustn't be rolling
Perfect	V-ing perfect
I mustn't have rolled you mustn't have rolled he mustn't have rolled we mustn't have rolled you mustn't have rolled they mustn't have rolled	I mustn't have been rolling you mustn't have been rolling he mustn't have been rolling we mustn't have been rolling you mustn't have been rolling they mustn't have been rolling

Interrogative form

Simple form	V-ing form
must I roll? must you roll? must he roll? must we roll? must you roll? must they roll?	must I be rolling? must you be rolling? must he be rolling? must we be rolling? must you be rolling? must they be rolling?
Perfect	V-ing perfect
must I have rolled? must you have rolled? must he have rolled? must we have rolled? must you have rolled? must they have rolled?	must I have been rolling? must you have been rolling? must he have been rolling? must we have been rolling? must you have been rolling? must they have been rolling?

Interro-negative form

Simple form	V-ing form
mustn't I roll? mustn't you roll? mustn't he roll? mustn't we roll? mustn't you roll? mustn't they roll?	mustn't I be rolling? mustn't you be rolling? mustn't he be rolling? mustn't we be rolling? mustn't you be rolling? mustn't they be rolling?
Perfect	V-ing perfect
mustn't I have rolled? mustn't you have rolled? mustn't he have rolled? mustn't we have rolled? mustn't you have rolled? mustn't they have rolled?	mustn't I have been rolling? mustn't you have been rolling? mustn't he have been rolling? mustn't we have been rolling? mustn't you have been rolling? mustn't they have been rolling?