English verb conjugation
MUST BROADEN

Regular verb: broaden - broadened - broadened

Affirmation

Simple form	V-ing form
I must broaden you must broaden he must broaden we must broaden you must broaden they must broaden	I must be broadening you must be broadening he must be broadening we must be broadening you must be broadening they must be broadening
Perfect	V-ing perfect
I must have broadened you must have broadened he must have broadened we must have broadened you must have broadened they must have broadened	I must have been broadening you must have been broadening he must have been broadening we must have been broadening you must have been broadening they must have been broadening

Negation

Simple form	V-ing form
I must not broaden you must not broaden he must not broaden we must not broaden you must not broaden they must not broaden	I must not be broadening you must not be broadening he must not be broadening we must not be broadening you must not be broadening they must not be broadening
Perfect	V-ing perfect
I must not have broadened you must not have broadened he must not have broadened we must not have broadened you must not have broadened they must not have broadened	I must not have been broadening you must not have been broadening he must not have been broadening we must not have been broadening you must not have been broadening they must not have been broadening

Interrogative form

Simple form	V-ing form
must I broaden? must you broaden? must he broaden? must we broaden? must you broaden? must they broaden?	must I be broadening? must you be broadening? must he be broadening? must we be broadening? must you be broadening? must they be broadening?
Perfect	V-ing perfect
must I have broadened? must you have broadened? must he have broadened? must we have broadened? must you have broadened? must they have broadened?	must I have been broadening? must you have been broadening? must he have been broadening? must we have been broadening? must you have been broadening? must they have been broadening?

Interro-negative form

Simple form	V-ing form
must I not broaden? must you not broaden? must he not broaden? must we not broaden? must you not broaden? must they not broaden?	must I not be broadening? must you not be broadening? must he not be broadening? must we not be broadening? must you not be broadening? must they not be broadening?
Perfect	V-ing perfect
must I not have broadened? must you not have broadened? must he not have broadened? must we not have broadened? must you not have broadened? must they not have broadened?	must I not have been broadening? must you not have been broadening? must he not have been broadening? must we not have been broadening? must you not have been broadening? must they not have been broadening?