I must immobilize you must immobilize she must immobilize we must immobilize you must immobilize they must immobilize
V-ing form
I must be immobilizing you must be immobilizing she must be immobilizing we must be immobilizing you must be immobilizing they must be immobilizing
Perfect
I must have immobilized you must have immobilized she must have immobilized we must have immobilized you must have immobilized they must have immobilized
V-ing perfect
I must have been immobilizing you must have been immobilizing she must have been immobilizing we must have been immobilizing you must have been immobilizing they must have been immobilizing
Negation
Simple form
I must not immobilize you must not immobilize she must not immobilize we must not immobilize you must not immobilize they must not immobilize
V-ing form
I must not be immobilizing you must not be immobilizing she must not be immobilizing we must not be immobilizing you must not be immobilizing they must not be immobilizing
Perfect
I must not have immobilized you must not have immobilized she must not have immobilized we must not have immobilized you must not have immobilized they must not have immobilized
V-ing perfect
I must not have been immobilizing you must not have been immobilizing she must not have been immobilizing we must not have been immobilizing you must not have been immobilizing they must not have been immobilizing
Interrogative form
Simple form
must I immobilize? must you immobilize? must she immobilize? must we immobilize? must you immobilize? must they immobilize?
V-ing form
must I be immobilizing? must you be immobilizing? must she be immobilizing? must we be immobilizing? must you be immobilizing? must they be immobilizing?
Perfect
must I have immobilized? must you have immobilized? must she have immobilized? must we have immobilized? must you have immobilized? must they have immobilized?
V-ing perfect
must I have been immobilizing? must you have been immobilizing? must she have been immobilizing? must we have been immobilizing? must you have been immobilizing? must they have been immobilizing?
Interro-negative form
Simple form
must I not immobilize? must you not immobilize? must she not immobilize? must we not immobilize? must you not immobilize? must they not immobilize?
V-ing form
must I not be immobilizing? must you not be immobilizing? must she not be immobilizing? must we not be immobilizing? must you not be immobilizing? must they not be immobilizing?
Perfect
must I not have immobilized? must you not have immobilized? must she not have immobilized? must we not have immobilized? must you not have immobilized? must they not have immobilized?
V-ing perfect
must I not have been immobilizing? must you not have been immobilizing? must she not have been immobilizing? must we not have been immobilizing? must you not have been immobilizing? must they not have been immobilizing?