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 mustn't roughhouse you mustn't roughhouse he mustn't roughhouse we mustn't roughhouse you mustn't roughhouse they mustn't roughhouse	I mustn't be roughhousing you mustn't be roughhousing he mustn't be roughhousing we mustn't be roughhousing you mustn't be roughhousing they mustn't be roughhousing
Perfect	V-ing perfect
I mustn't have roughhoused you mustn't have roughhoused he mustn't have roughhoused we mustn't have roughhoused you mustn't have roughhoused they mustn't have roughhoused	I mustn't have been roughhousing you mustn't have been roughhousing he mustn't have been roughhousing we mustn't have been roughhousing you mustn't have been roughhousing they mustn't 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
mustn't I roughhouse? mustn't you roughhouse? mustn't he roughhouse? mustn't we roughhouse? mustn't you roughhouse? mustn't they roughhouse?	mustn't I be roughhousing? mustn't you be roughhousing? mustn't he be roughhousing? mustn't we be roughhousing? mustn't you be roughhousing? mustn't they be roughhousing?
Perfect	V-ing perfect
mustn't I have roughhoused? mustn't you have roughhoused? mustn't he have roughhoused? mustn't we have roughhoused? mustn't you have roughhoused? mustn't they have roughhoused?	mustn't I have been roughhousing? mustn't you have been roughhousing? mustn't he have been roughhousing? mustn't we have been roughhousing? mustn't you have been roughhousing? mustn't they have been roughhousing?