English verb conjugation
MUST ROTOTILL

Regular verb: rototill - rototilled - rototilled

Affirmation

Simple form	V-ing form
I must rototill you must rototill he must rototill we must rototill you must rototill they must rototill	I must be rototilling you must be rototilling he must be rototilling we must be rototilling you must be rototilling they must be rototilling
Perfect	V-ing perfect
I must have rototilled you must have rototilled he must have rototilled we must have rototilled you must have rototilled they must have rototilled	I must have been rototilling you must have been rototilling he must have been rototilling we must have been rototilling you must have been rototilling they must have been rototilling

Negation

Simple form	V-ing form
I mustn't rototill you mustn't rototill he mustn't rototill we mustn't rototill you mustn't rototill they mustn't rototill	I mustn't be rototilling you mustn't be rototilling he mustn't be rototilling we mustn't be rototilling you mustn't be rototilling they mustn't be rototilling
Perfect	V-ing perfect
I mustn't have rototilled you mustn't have rototilled he mustn't have rototilled we mustn't have rototilled you mustn't have rototilled they mustn't have rototilled	I mustn't have been rototilling you mustn't have been rototilling he mustn't have been rototilling we mustn't have been rototilling you mustn't have been rototilling they mustn't have been rototilling

Interrogative form

Simple form	V-ing form
must I rototill? must you rototill? must he rototill? must we rototill? must you rototill? must they rototill?	must I be rototilling? must you be rototilling? must he be rototilling? must we be rototilling? must you be rototilling? must they be rototilling?
Perfect	V-ing perfect
must I have rototilled? must you have rototilled? must he have rototilled? must we have rototilled? must you have rototilled? must they have rototilled?	must I have been rototilling? must you have been rototilling? must he have been rototilling? must we have been rototilling? must you have been rototilling? must they have been rototilling?

Interro-negative form

Simple form	V-ing form
mustn't I rototill? mustn't you rototill? mustn't he rototill? mustn't we rototill? mustn't you rototill? mustn't they rototill?	mustn't I be rototilling? mustn't you be rototilling? mustn't he be rototilling? mustn't we be rototilling? mustn't you be rototilling? mustn't they be rototilling?
Perfect	V-ing perfect
mustn't I have rototilled? mustn't you have rototilled? mustn't he have rototilled? mustn't we have rototilled? mustn't you have rototilled? mustn't they have rototilled?	mustn't I have been rototilling? mustn't you have been rototilling? mustn't he have been rototilling? mustn't we have been rototilling? mustn't you have been rototilling? mustn't they have been rototilling?