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 mustn't immaterialize you mustn't immaterialize she mustn't immaterialize we mustn't immaterialize you mustn't immaterialize they mustn't immaterialize
V-ing form
I mustn't be immaterializing you mustn't be immaterializing she mustn't be immaterializing we mustn't be immaterializing you mustn't be immaterializing they mustn't be immaterializing
Perfect
I mustn't have immaterialized you mustn't have immaterialized she mustn't have immaterialized we mustn't have immaterialized you mustn't have immaterialized they mustn't have immaterialized
V-ing perfect
I mustn't have been immaterializing you mustn't have been immaterializing she mustn't have been immaterializing we mustn't have been immaterializing you mustn't have been immaterializing they mustn't 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
mustn't I immaterialize? mustn't you immaterialize? mustn't she immaterialize? mustn't we immaterialize? mustn't you immaterialize? mustn't they immaterialize?
V-ing form
mustn't I be immaterializing? mustn't you be immaterializing? mustn't she be immaterializing? mustn't we be immaterializing? mustn't you be immaterializing? mustn't they be immaterializing?
Perfect
mustn't I have immaterialized? mustn't you have immaterialized? mustn't she have immaterialized? mustn't we have immaterialized? mustn't you have immaterialized? mustn't they have immaterialized?
V-ing perfect
mustn't I have been immaterializing? mustn't you have been immaterializing? mustn't she have been immaterializing? mustn't we have been immaterializing? mustn't you have been immaterializing? mustn't they have been immaterializing?