I must slenderize you must slenderize he must slenderize we must slenderize you must slenderize they must slenderize
V-ing form
I must be slenderizing you must be slenderizing he must be slenderizing we must be slenderizing you must be slenderizing they must be slenderizing
Perfect
I must have slenderized you must have slenderized he must have slenderized we must have slenderized you must have slenderized they must have slenderized
V-ing perfect
I must have been slenderizing you must have been slenderizing he must have been slenderizing we must have been slenderizing you must have been slenderizing they must have been slenderizing
Negation
Simple form
I must not slenderize you must not slenderize he must not slenderize we must not slenderize you must not slenderize they must not slenderize
V-ing form
I must not be slenderizing you must not be slenderizing he must not be slenderizing we must not be slenderizing you must not be slenderizing they must not be slenderizing
Perfect
I must not have slenderized you must not have slenderized he must not have slenderized we must not have slenderized you must not have slenderized they must not have slenderized
V-ing perfect
I must not have been slenderizing you must not have been slenderizing he must not have been slenderizing we must not have been slenderizing you must not have been slenderizing they must not have been slenderizing
Interrogative form
Simple form
must I slenderize? must you slenderize? must he slenderize? must we slenderize? must you slenderize? must they slenderize?
V-ing form
must I be slenderizing? must you be slenderizing? must he be slenderizing? must we be slenderizing? must you be slenderizing? must they be slenderizing?
Perfect
must I have slenderized? must you have slenderized? must he have slenderized? must we have slenderized? must you have slenderized? must they have slenderized?
V-ing perfect
must I have been slenderizing? must you have been slenderizing? must he have been slenderizing? must we have been slenderizing? must you have been slenderizing? must they have been slenderizing?
Interro-negative form
Simple form
must I not slenderize? must you not slenderize? must he not slenderize? must we not slenderize? must you not slenderize? must they not slenderize?
V-ing form
must I not be slenderizing? must you not be slenderizing? must he not be slenderizing? must we not be slenderizing? must you not be slenderizing? must they not be slenderizing?
Perfect
must I not have slenderized? must you not have slenderized? must he not have slenderized? must we not have slenderized? must you not have slenderized? must they not have slenderized?
V-ing perfect
must I not have been slenderizing? must you not have been slenderizing? must he not have been slenderizing? must we not have been slenderizing? must you not have been slenderizing? must they not have been slenderizing?