English verb conjugation
MUST DEAFEN

Regular verb: deafen - deafened - deafened

Affirmation

Simple form	V-ing form
I must deafen you must deafen he must deafen we must deafen you must deafen they must deafen	I must be deafening you must be deafening he must be deafening we must be deafening you must be deafening they must be deafening
Perfect	V-ing perfect
I must have deafened you must have deafened he must have deafened we must have deafened you must have deafened they must have deafened	I must have been deafening you must have been deafening he must have been deafening we must have been deafening you must have been deafening they must have been deafening

Negation

Simple form	V-ing form
I must not deafen you must not deafen he must not deafen we must not deafen you must not deafen they must not deafen	I must not be deafening you must not be deafening he must not be deafening we must not be deafening you must not be deafening they must not be deafening
Perfect	V-ing perfect
I must not have deafened you must not have deafened he must not have deafened we must not have deafened you must not have deafened they must not have deafened	I must not have been deafening you must not have been deafening he must not have been deafening we must not have been deafening you must not have been deafening they must not have been deafening

Interrogative form

Simple form	V-ing form
must I deafen? must you deafen? must he deafen? must we deafen? must you deafen? must they deafen?	must I be deafening? must you be deafening? must he be deafening? must we be deafening? must you be deafening? must they be deafening?
Perfect	V-ing perfect
must I have deafened? must you have deafened? must he have deafened? must we have deafened? must you have deafened? must they have deafened?	must I have been deafening? must you have been deafening? must he have been deafening? must we have been deafening? must you have been deafening? must they have been deafening?

Interro-negative form

Simple form	V-ing form
must I not deafen? must you not deafen? must he not deafen? must we not deafen? must you not deafen? must they not deafen?	must I not be deafening? must you not be deafening? must he not be deafening? must we not be deafening? must you not be deafening? must they not be deafening?
Perfect	V-ing perfect
must I not have deafened? must you not have deafened? must he not have deafened? must we not have deafened? must you not have deafened? must they not have deafened?	must I not have been deafening? must you not have been deafening? must he not have been deafening? must we not have been deafening? must you not have been deafening? must they not have been deafening?