English verb conjugation
MUST CHARACTERIZE

Regular verb: characterize - characterized - characterized

Affirmation

Simple form	V-ing form
I must characterize you must characterize he must characterize we must characterize you must characterize they must characterize	I must be characterizing you must be characterizing he must be characterizing we must be characterizing you must be characterizing they must be characterizing
Perfect	V-ing perfect
I must have characterized you must have characterized he must have characterized we must have characterized you must have characterized they must have characterized	I must have been characterizing you must have been characterizing he must have been characterizing we must have been characterizing you must have been characterizing they must have been characterizing

Negation

Simple form	V-ing form
I must not characterize you must not characterize he must not characterize we must not characterize you must not characterize they must not characterize	I must not be characterizing you must not be characterizing he must not be characterizing we must not be characterizing you must not be characterizing they must not be characterizing
Perfect	V-ing perfect
I must not have characterized you must not have characterized he must not have characterized we must not have characterized you must not have characterized they must not have characterized	I must not have been characterizing you must not have been characterizing he must not have been characterizing we must not have been characterizing you must not have been characterizing they must not have been characterizing

Interrogative form

Simple form	V-ing form
must I characterize? must you characterize? must he characterize? must we characterize? must you characterize? must they characterize?	must I be characterizing? must you be characterizing? must he be characterizing? must we be characterizing? must you be characterizing? must they be characterizing?
Perfect	V-ing perfect
must I have characterized? must you have characterized? must he have characterized? must we have characterized? must you have characterized? must they have characterized?	must I have been characterizing? must you have been characterizing? must he have been characterizing? must we have been characterizing? must you have been characterizing? must they have been characterizing?

Interro-negative form

Simple form	V-ing form
must I not characterize? must you not characterize? must he not characterize? must we not characterize? must you not characterize? must they not characterize?	must I not be characterizing? must you not be characterizing? must he not be characterizing? must we not be characterizing? must you not be characterizing? must they not be characterizing?
Perfect	V-ing perfect
must I not have characterized? must you not have characterized? must he not have characterized? must we not have characterized? must you not have characterized? must they not have characterized?	must I not have been characterizing? must you not have been characterizing? must he not have been characterizing? must we not have been characterizing? must you not have been characterizing? must they not have been characterizing?