I must immaterialize you must immaterialize she must immaterialize we must immaterialize you must immaterialize they must immaterialize
V-ing form
I must be immaterializing you must be immaterializing she must be immaterializing we must be immaterializing you must be immaterializing they must be immaterializing
Perfect
I must have immaterialized you must have immaterialized she must have immaterialized we must have immaterialized you must have immaterialized they must have immaterialized
V-ing perfect
I must have been immaterializing you must have been immaterializing she must have been immaterializing we must have been immaterializing you must have been immaterializing they must have been immaterializing
Negation
Simple form
I must not immaterialize you must not immaterialize she must not immaterialize we must not immaterialize you must not immaterialize they must not immaterialize
V-ing form
I must not be immaterializing you must not be immaterializing she must not be immaterializing we must not be immaterializing you must not be immaterializing they must not be immaterializing
Perfect
I must not have immaterialized you must not have immaterialized she must not have immaterialized we must not have immaterialized you must not have immaterialized they must not have immaterialized
V-ing perfect
I must not have been immaterializing you must not have been immaterializing she must not have been immaterializing we must not have been immaterializing you must not have been immaterializing they must not have been immaterializing
Interrogative form
Simple form
must I immaterialize? must you immaterialize? must she immaterialize? must we immaterialize? must you immaterialize? must they immaterialize?
V-ing form
must I be immaterializing? must you be immaterializing? must she be immaterializing? must we be immaterializing? must you be immaterializing? must they be immaterializing?
Perfect
must I have immaterialized? must you have immaterialized? must she have immaterialized? must we have immaterialized? must you have immaterialized? must they have immaterialized?
V-ing perfect
must I have been immaterializing? must you have been immaterializing? must she have been immaterializing? must we have been immaterializing? must you have been immaterializing? must they have been immaterializing?
Interro-negative form
Simple form
must I not immaterialize? must you not immaterialize? must she not immaterialize? must we not immaterialize? must you not immaterialize? must they not immaterialize?
V-ing form
must I not be immaterializing? must you not be immaterializing? must she not be immaterializing? must we not be immaterializing? must you not be immaterializing? must they not be immaterializing?
Perfect
must I not have immaterialized? must you not have immaterialized? must she not have immaterialized? must we not have immaterialized? must you not have immaterialized? must they not have immaterialized?
V-ing perfect
must I not have been immaterializing? must you not have been immaterializing? must she not have been immaterializing? must we not have been immaterializing? must you not have been immaterializing? must they not have been immaterializing?