English verb conjugation
MUST ROUST

Regular verb: roust - rousted - rousted

Affirmation

Simple form	V-ing form
I must roust you must roust he must roust we must roust you must roust they must roust	I must be rousting you must be rousting he must be rousting we must be rousting you must be rousting they must be rousting
Perfect	V-ing perfect
I must have rousted you must have rousted he must have rousted we must have rousted you must have rousted they must have rousted	I must have been rousting you must have been rousting he must have been rousting we must have been rousting you must have been rousting they must have been rousting

Negation

Simple form	V-ing form
I must not roust you must not roust he must not roust we must not roust you must not roust they must not roust	I must not be rousting you must not be rousting he must not be rousting we must not be rousting you must not be rousting they must not be rousting
Perfect	V-ing perfect
I must not have rousted you must not have rousted he must not have rousted we must not have rousted you must not have rousted they must not have rousted	I must not have been rousting you must not have been rousting he must not have been rousting we must not have been rousting you must not have been rousting they must not have been rousting

Interrogative form

Simple form	V-ing form
must I roust? must you roust? must he roust? must we roust? must you roust? must they roust?	must I be rousting? must you be rousting? must he be rousting? must we be rousting? must you be rousting? must they be rousting?
Perfect	V-ing perfect
must I have rousted? must you have rousted? must he have rousted? must we have rousted? must you have rousted? must they have rousted?	must I have been rousting? must you have been rousting? must he have been rousting? must we have been rousting? must you have been rousting? must they have been rousting?

Interro-negative form

Simple form	V-ing form
must I not roust? must you not roust? must he not roust? must we not roust? must you not roust? must they not roust?	must I not be rousting? must you not be rousting? must he not be rousting? must we not be rousting? must you not be rousting? must they not be rousting?
Perfect	V-ing perfect
must I not have rousted? must you not have rousted? must he not have rousted? must we not have rousted? must you not have rousted? must they not have rousted?	must I not have been rousting? must you not have been rousting? must he not have been rousting? must we not have been rousting? must you not have been rousting? must they not have been rousting?