I must immaterialise you must immaterialise he must immaterialise we must immaterialise you must immaterialise they must immaterialise
V-ing form
I must be immaterialising you must be immaterialising he must be immaterialising we must be immaterialising you must be immaterialising they must be immaterialising
Perfect
I must have immaterialised you must have immaterialised he must have immaterialised we must have immaterialised you must have immaterialised they must have immaterialised
V-ing perfect
I must have been immaterialising you must have been immaterialising he must have been immaterialising we must have been immaterialising you must have been immaterialising they must have been immaterialising
Negation
Simple form
I must not immaterialise you must not immaterialise he must not immaterialise we must not immaterialise you must not immaterialise they must not immaterialise
V-ing form
I must not be immaterialising you must not be immaterialising he must not be immaterialising we must not be immaterialising you must not be immaterialising they must not be immaterialising
Perfect
I must not have immaterialised you must not have immaterialised he must not have immaterialised we must not have immaterialised you must not have immaterialised they must not have immaterialised
V-ing perfect
I must not have been immaterialising you must not have been immaterialising he must not have been immaterialising we must not have been immaterialising you must not have been immaterialising they must not have been immaterialising
Interrogative form
Simple form
must I immaterialise? must you immaterialise? must he immaterialise? must we immaterialise? must you immaterialise? must they immaterialise?
V-ing form
must I be immaterialising? must you be immaterialising? must he be immaterialising? must we be immaterialising? must you be immaterialising? must they be immaterialising?
Perfect
must I have immaterialised? must you have immaterialised? must he have immaterialised? must we have immaterialised? must you have immaterialised? must they have immaterialised?
V-ing perfect
must I have been immaterialising? must you have been immaterialising? must he have been immaterialising? must we have been immaterialising? must you have been immaterialising? must they have been immaterialising?
Interro-negative form
Simple form
must I not immaterialise? must you not immaterialise? must he not immaterialise? must we not immaterialise? must you not immaterialise? must they not immaterialise?
V-ing form
must I not be immaterialising? must you not be immaterialising? must he not be immaterialising? must we not be immaterialising? must you not be immaterialising? must they not be immaterialising?
Perfect
must I not have immaterialised? must you not have immaterialised? must he not have immaterialised? must we not have immaterialised? must you not have immaterialised? must they not have immaterialised?
V-ing perfect
must I not have been immaterialising? must you not have been immaterialising? must he not have been immaterialising? must we not have been immaterialising? must you not have been immaterialising? must they not have been immaterialising?