English verb conjugation
MUST UTILISE

Regular verb: utilise - utilised - utilised

Affirmation

Simple form	V-ing form
I must utilise you must utilise he must utilise we must utilise you must utilise they must utilise	I must be utilising you must be utilising he must be utilising we must be utilising you must be utilising they must be utilising
Perfect	V-ing perfect
I must have utilised you must have utilised he must have utilised we must have utilised you must have utilised they must have utilised	I must have been utilising you must have been utilising he must have been utilising we must have been utilising you must have been utilising they must have been utilising

Negation

Simple form	V-ing form
I mustn't utilise you mustn't utilise he mustn't utilise we mustn't utilise you mustn't utilise they mustn't utilise	I mustn't be utilising you mustn't be utilising he mustn't be utilising we mustn't be utilising you mustn't be utilising they mustn't be utilising
Perfect	V-ing perfect
I mustn't have utilised you mustn't have utilised he mustn't have utilised we mustn't have utilised you mustn't have utilised they mustn't have utilised	I mustn't have been utilising you mustn't have been utilising he mustn't have been utilising we mustn't have been utilising you mustn't have been utilising they mustn't have been utilising

Interrogative form

Simple form	V-ing form
must I utilise? must you utilise? must he utilise? must we utilise? must you utilise? must they utilise?	must I be utilising? must you be utilising? must he be utilising? must we be utilising? must you be utilising? must they be utilising?
Perfect	V-ing perfect
must I have utilised? must you have utilised? must he have utilised? must we have utilised? must you have utilised? must they have utilised?	must I have been utilising? must you have been utilising? must he have been utilising? must we have been utilising? must you have been utilising? must they have been utilising?

Interro-negative form

Simple form	V-ing form
mustn't I utilise? mustn't you utilise? mustn't he utilise? mustn't we utilise? mustn't you utilise? mustn't they utilise?	mustn't I be utilising? mustn't you be utilising? mustn't he be utilising? mustn't we be utilising? mustn't you be utilising? mustn't they be utilising?
Perfect	V-ing perfect
mustn't I have utilised? mustn't you have utilised? mustn't he have utilised? mustn't we have utilised? mustn't you have utilised? mustn't they have utilised?	mustn't I have been utilising? mustn't you have been utilising? mustn't he have been utilising? mustn't we have been utilising? mustn't you have been utilising? mustn't they have been utilising?