can roughhouse
Regular verb: roughhouse - roughhoused- roughhoused

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't roughhouse
you can't roughhouse
he can't roughhouse
we can't roughhouse
you can't roughhouse
they can't roughhouse 	I can't be roughhousing
you can't be roughhousing
he can't be roughhousing
we can't be roughhousing
you can't be roughhousing
they can't be roughhousing	I can't have roughhoused
you can't have roughhoused
he can't have roughhoused
we can't have roughhoused
you can't have roughhoused
they can't have roughhoused	I can't have been roughhousing
you can't have been roughhousing
he can't have been roughhousing
we can't have been roughhousing
you can't have been roughhousing
they can't have been roughhousing	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I roughhouse?
can't you roughhouse?
can't he roughhouse?
can't we roughhouse?
can't you roughhouse?
can't they roughhouse? 	can't I be roughhousing?
can't you be roughhousing?
can't he be roughhousing?
can't we be roughhousing?
can't you be roughhousing?
can't they be roughhousing? 	can't I have roughhoused?
can't you have roughhoused?
can't he have roughhoused?
can't we have roughhoused?
can't you have roughhoused?
can't they have roughhoused? 	can't I have been roughhousing?
can't you have been roughhousing?
can't he have been roughhousing?
can't we have been roughhousing?
can't you have been roughhousing?
can't they have been roughhousing?