can roughen
Verbo regolare: roughen - roughened- roughened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can roughen
you can roughen
he can roughen
we can roughen
you can roughen
they can roughen 	I can be roughening
you can be roughening
he can be roughening
we can be roughening
you can be roughening
they can be roughening	I can have roughened
you can have roughened
he can have roughened
we can have roughened
you can have roughened
they can have roughened	I can have been roughening
you can have been roughening
he can have been roughening
we can have been roughening
you can have been roughening
they can have been roughening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot roughen
you cannot roughen
he cannot roughen
we cannot roughen
you cannot roughen
they cannot roughen 	I cannot be roughening
you cannot be roughening
he cannot be roughening
we cannot be roughening
you cannot be roughening
they cannot be roughening	I cannot have roughened
you cannot have roughened
he cannot have roughened
we cannot have roughened
you cannot have roughened
they cannot have roughened	I cannot have been roughening
you cannot have been roughening
he cannot have been roughening
we cannot have been roughening
you cannot have been roughening
they cannot have been roughening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I roughen?
can you roughen?
can he roughen?
can we roughen?
can you roughen?
can they roughen? 	can I be roughening?
can you be roughening?
can he be roughening?
can we be roughening?
can you be roughening?
can they be roughening? 	can I have roughened?
can you have roughened?
can he have roughened?
can we have roughened?
can you have roughened?
can they have roughened? 	can I have been roughening?
can you have been roughening?
can he have been roughening?
can we have been roughening?
can you have been roughening?
can they have been roughening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not roughen?
can you not roughen?
can he not roughen?
can we not roughen?
can you not roughen?
can they not roughen? 	can I not be roughening?
can you not be roughening?
can he not be roughening?
can we not be roughening?
can you not be roughening?
can they not be roughening? 	can I not have roughened?
can you not have roughened?
can he not have roughened?
can we not have roughened?
can you not have roughened?
can they not have roughened? 	can I not have been roughening?
can you not have been roughening?
can he not have been roughening?
can we not have been roughening?
can you not have been roughening?
can they not have been roughening?