English verb conjugation
MUST ROUGHHOUSE

Regular verb: roughhouse - roughhoused - roughhoused

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I mustn't roughhouse you mustn't roughhouse she 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 she 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 she 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 she 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 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?
Perfect	V-ing perfect
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
mustn't I roughhouse? mustn't you roughhouse? mustn't she 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 she 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 she 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 she have been roughhousing? mustn't we have been roughhousing? mustn't you have been roughhousing? mustn't they have been roughhousing?