must roughhouse
Verbo regular: roughhouse - roughhoused- roughhoused

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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?