must roughhouse
Regular verb: roughhouse - roughhoused- roughhoused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must roughhouse
you must roughhouse
she must roughhouse
we must roughhouse
you must roughhouse
they must roughhouse 	I must be roughhousing
you must be roughhousing
she must be roughhousing
we must be roughhousing
you must be roughhousing
they must be roughhousing	I must have roughhoused
you must have roughhoused
she must have roughhoused
we must have roughhoused
you must have roughhoused
they must have roughhoused	I must have been roughhousing
you must have been roughhousing
she must have been roughhousing
we must have been roughhousing
you must have been roughhousing
they must have been roughhousing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not roughhouse
you must not roughhouse
she must not roughhouse
we must not roughhouse
you must not roughhouse
they must not roughhouse 	I must not be roughhousing
you must not be roughhousing
she must not be roughhousing
we must not be roughhousing
you must not be roughhousing
they must not be roughhousing	I must not have roughhoused
you must not have roughhoused
she must not have roughhoused
we must not have roughhoused
you must not have roughhoused
they must not have roughhoused	I must not have been roughhousing
you must not have been roughhousing
she must not have been roughhousing
we must not have been roughhousing
you must not have been roughhousing
they must not have been roughhousing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I roughhouse?
must you roughhouse?
must she roughhouse?
must we roughhouse?
must you roughhouse?
must they roughhouse? 	must I be roughhousing?
must you be roughhousing?
must she be roughhousing?
must we be roughhousing?
must you be roughhousing?
must they be roughhousing? 	must I have roughhoused?
must you have roughhoused?
must she have roughhoused?
must we have roughhoused?
must you have roughhoused?
must they have roughhoused? 	must I have been roughhousing?
must you have been roughhousing?
must she have been roughhousing?
must we have been roughhousing?
must you have been roughhousing?
must they have been roughhousing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not roughhouse?
must you not roughhouse?
must she not roughhouse?
must we not roughhouse?
must you not roughhouse?
must they not roughhouse? 	must I not be roughhousing?
must you not be roughhousing?
must she not be roughhousing?
must we not be roughhousing?
must you not be roughhousing?
must they not be roughhousing? 	must I not have roughhoused?
must you not have roughhoused?
must she not have roughhoused?
must we not have roughhoused?
must you not have roughhoused?
must they not have roughhoused? 	must I not have been roughhousing?
must you not have been roughhousing?
must she not have been roughhousing?
must we not have been roughhousing?
must you not have been roughhousing?
must they not have been roughhousing?