English verb conjugation
MUST ECONOMISE

Regular verb: economise - economised - economised

Affirmation

Simple form	V-ing form
I must economise you must economise he must economise we must economise you must economise they must economise	I must be economising you must be economising he must be economising we must be economising you must be economising they must be economising
Perfect	V-ing perfect
I must have economised you must have economised he must have economised we must have economised you must have economised they must have economised	I must have been economising you must have been economising he must have been economising we must have been economising you must have been economising they must have been economising

Negation

Simple form	V-ing form
I mustn't economise you mustn't economise he mustn't economise we mustn't economise you mustn't economise they mustn't economise	I mustn't be economising you mustn't be economising he mustn't be economising we mustn't be economising you mustn't be economising they mustn't be economising
Perfect	V-ing perfect
I mustn't have economised you mustn't have economised he mustn't have economised we mustn't have economised you mustn't have economised they mustn't have economised	I mustn't have been economising you mustn't have been economising he mustn't have been economising we mustn't have been economising you mustn't have been economising they mustn't have been economising

Interrogative form

Simple form	V-ing form
must I economise? must you economise? must he economise? must we economise? must you economise? must they economise?	must I be economising? must you be economising? must he be economising? must we be economising? must you be economising? must they be economising?
Perfect	V-ing perfect
must I have economised? must you have economised? must he have economised? must we have economised? must you have economised? must they have economised?	must I have been economising? must you have been economising? must he have been economising? must we have been economising? must you have been economising? must they have been economising?

Interro-negative form

Simple form	V-ing form
mustn't I economise? mustn't you economise? mustn't he economise? mustn't we economise? mustn't you economise? mustn't they economise?	mustn't I be economising? mustn't you be economising? mustn't he be economising? mustn't we be economising? mustn't you be economising? mustn't they be economising?
Perfect	V-ing perfect
mustn't I have economised? mustn't you have economised? mustn't he have economised? mustn't we have economised? mustn't you have economised? mustn't they have economised?	mustn't I have been economising? mustn't you have been economising? mustn't he have been economising? mustn't we have been economising? mustn't you have been economising? mustn't they have been economising?