Conjugación del verbo inglés
MUST ROUGHEN

Verbo regular: roughen - roughened - roughened

Afirmación

Forma simple	Forma con V-ing
I must roughen you must roughen he must roughen we must roughen you must roughen they must roughen	I must be roughening you must be roughening he must be roughening we must be roughening you must be roughening they must be roughening
Perfecto	Perfecto con V-ing
I must have roughened you must have roughened he must have roughened we must have roughened you must have roughened they must have roughened	I must have been roughening you must have been roughening he must have been roughening we must have been roughening you must have been roughening they must have been roughening

Negación

Forma simple	Forma con V-ing
I must not roughen you must not roughen he must not roughen we must not roughen you must not roughen they must not roughen	I must not be roughening you must not be roughening he must not be roughening we must not be roughening you must not be roughening they must not be roughening
Perfecto	Perfecto con V-ing
I must not have roughened you must not have roughened he must not have roughened we must not have roughened you must not have roughened they must not have roughened	I must not have been roughening you must not have been roughening he must not have been roughening we must not have been roughening you must not have been roughening they must not have been roughening

Forma interrogativa

Forma simple	Forma con V-ing
must I roughen? must you roughen? must he roughen? must we roughen? must you roughen? must they roughen?	must I be roughening? must you be roughening? must he be roughening? must we be roughening? must you be roughening? must they be roughening?
Perfecto	Perfecto con V-ing
must I have roughened? must you have roughened? must he have roughened? must we have roughened? must you have roughened? must they have roughened?	must I have been roughening? must you have been roughening? must he have been roughening? must we have been roughening? must you have been roughening? must they have been roughening?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not roughen? must you not roughen? must he not roughen? must we not roughen? must you not roughen? must they not roughen?	must I not be roughening? must you not be roughening? must he not be roughening? must we not be roughening? must you not be roughening? must they not be roughening?
Perfecto	Perfecto con V-ing
must I not have roughened? must you not have roughened? must he not have roughened? must we not have roughened? must you not have roughened? must they not have roughened?	must I not have been roughening? must you not have been roughening? must he not have been roughening? must we not have been roughening? must you not have been roughening? must they not have been roughening?