English verb conjugation
MUST DEVITALISE

Regular verb: devitalise - devitalised - devitalised

Affirmation

Simple form	V-ing form
I must devitalise you must devitalise he must devitalise we must devitalise you must devitalise they must devitalise	I must be devitalising you must be devitalising he must be devitalising we must be devitalising you must be devitalising they must be devitalising
Perfect	V-ing perfect
I must have devitalised you must have devitalised he must have devitalised we must have devitalised you must have devitalised they must have devitalised	I must have been devitalising you must have been devitalising he must have been devitalising we must have been devitalising you must have been devitalising they must have been devitalising

Negation

Simple form	V-ing form
I must not devitalise you must not devitalise he must not devitalise we must not devitalise you must not devitalise they must not devitalise	I must not be devitalising you must not be devitalising he must not be devitalising we must not be devitalising you must not be devitalising they must not be devitalising
Perfect	V-ing perfect
I must not have devitalised you must not have devitalised he must not have devitalised we must not have devitalised you must not have devitalised they must not have devitalised	I must not have been devitalising you must not have been devitalising he must not have been devitalising we must not have been devitalising you must not have been devitalising they must not have been devitalising

Interrogative form

Simple form	V-ing form
must I devitalise? must you devitalise? must he devitalise? must we devitalise? must you devitalise? must they devitalise?	must I be devitalising? must you be devitalising? must he be devitalising? must we be devitalising? must you be devitalising? must they be devitalising?
Perfect	V-ing perfect
must I have devitalised? must you have devitalised? must he have devitalised? must we have devitalised? must you have devitalised? must they have devitalised?	must I have been devitalising? must you have been devitalising? must he have been devitalising? must we have been devitalising? must you have been devitalising? must they have been devitalising?

Interro-negative form

Simple form	V-ing form
must I not devitalise? must you not devitalise? must he not devitalise? must we not devitalise? must you not devitalise? must they not devitalise?	must I not be devitalising? must you not be devitalising? must he not be devitalising? must we not be devitalising? must you not be devitalising? must they not be devitalising?
Perfect	V-ing perfect
must I not have devitalised? must you not have devitalised? must he not have devitalised? must we not have devitalised? must you not have devitalised? must they not have devitalised?	must I not have been devitalising? must you not have been devitalising? must he not have been devitalising? must we not have been devitalising? must you not have been devitalising? must they not have been devitalising?