English verb conjugation
MUST DEMATERIALISE

Regular verb: dematerialise - dematerialised - dematerialised

Affirmation

Simple form	V-ing form
I must dematerialise you must dematerialise he must dematerialise we must dematerialise you must dematerialise they must dematerialise	I must be dematerialising you must be dematerialising he must be dematerialising we must be dematerialising you must be dematerialising they must be dematerialising
Perfect	V-ing perfect
I must have dematerialised you must have dematerialised he must have dematerialised we must have dematerialised you must have dematerialised they must have dematerialised	I must have been dematerialising you must have been dematerialising he must have been dematerialising we must have been dematerialising you must have been dematerialising they must have been dematerialising

Negation

Simple form	V-ing form
I must not dematerialise you must not dematerialise he must not dematerialise we must not dematerialise you must not dematerialise they must not dematerialise	I must not be dematerialising you must not be dematerialising he must not be dematerialising we must not be dematerialising you must not be dematerialising they must not be dematerialising
Perfect	V-ing perfect
I must not have dematerialised you must not have dematerialised he must not have dematerialised we must not have dematerialised you must not have dematerialised they must not have dematerialised	I must not have been dematerialising you must not have been dematerialising he must not have been dematerialising we must not have been dematerialising you must not have been dematerialising they must not have been dematerialising

Interrogative form

Simple form	V-ing form
must I dematerialise? must you dematerialise? must he dematerialise? must we dematerialise? must you dematerialise? must they dematerialise?	must I be dematerialising? must you be dematerialising? must he be dematerialising? must we be dematerialising? must you be dematerialising? must they be dematerialising?
Perfect	V-ing perfect
must I have dematerialised? must you have dematerialised? must he have dematerialised? must we have dematerialised? must you have dematerialised? must they have dematerialised?	must I have been dematerialising? must you have been dematerialising? must he have been dematerialising? must we have been dematerialising? must you have been dematerialising? must they have been dematerialising?

Interro-negative form

Simple form	V-ing form
must I not dematerialise? must you not dematerialise? must he not dematerialise? must we not dematerialise? must you not dematerialise? must they not dematerialise?	must I not be dematerialising? must you not be dematerialising? must he not be dematerialising? must we not be dematerialising? must you not be dematerialising? must they not be dematerialising?
Perfect	V-ing perfect
must I not have dematerialised? must you not have dematerialised? must he not have dematerialised? must we not have dematerialised? must you not have dematerialised? must they not have dematerialised?	must I not have been dematerialising? must you not have been dematerialising? must he not have been dematerialising? must we not have been dematerialising? must you not have been dematerialising? must they not have been dematerialising?