English verb conjugation
MUST ROUGHHOUSE

Regular verb: roughhouse - roughhoused - roughhoused

Affirmation

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