Conjugación del verbo inglés
CAN ROUGH

Verbo regular: rough - roughed - roughed

Afirmación

Forma simple	Forma con V-ing
I can rough you can rough he can rough we can rough you can rough they can rough	I can be roughing you can be roughing he can be roughing we can be roughing you can be roughing they can be roughing
Perfecto	Perfecto con V-ing
I can have roughed you can have roughed he can have roughed we can have roughed you can have roughed they can have roughed	I can have been roughing you can have been roughing he can have been roughing we can have been roughing you can have been roughing they can have been roughing

Negación

Forma simple	Forma con V-ing
I cannot rough you cannot rough he cannot rough we cannot rough you cannot rough they cannot rough	I cannot be roughing you cannot be roughing he cannot be roughing we cannot be roughing you cannot be roughing they cannot be roughing
Perfecto	Perfecto con V-ing
I cannot have roughed you cannot have roughed he cannot have roughed we cannot have roughed you cannot have roughed they cannot have roughed	I cannot have been roughing you cannot have been roughing he cannot have been roughing we cannot have been roughing you cannot have been roughing they cannot have been roughing

Forma interrogativa

Forma simple	Forma con V-ing
can I rough? can you rough? can he rough? can we rough? can you rough? can they rough?	can I be roughing? can you be roughing? can he be roughing? can we be roughing? can you be roughing? can they be roughing?
Perfecto	Perfecto con V-ing
can I have roughed? can you have roughed? can he have roughed? can we have roughed? can you have roughed? can they have roughed?	can I have been roughing? can you have been roughing? can he have been roughing? can we have been roughing? can you have been roughing? can they have been roughing?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not rough? can you not rough? can he not rough? can we not rough? can you not rough? can they not rough?	can I not be roughing? can you not be roughing? can he not be roughing? can we not be roughing? can you not be roughing? can they not be roughing?
Perfecto	Perfecto con V-ing
can I not have roughed? can you not have roughed? can he not have roughed? can we not have roughed? can you not have roughed? can they not have roughed?	can I not have been roughing? can you not have been roughing? can he not have been roughing? can we not have been roughing? can you not have been roughing? can they not have been roughing?