English verb conjugation
MUST OPERATE

Regular verb: operate - operated - operated

Affirmation

Simple form	V-ing form
I must operate you must operate he must operate we must operate you must operate they must operate	I must be operating you must be operating he must be operating we must be operating you must be operating they must be operating
Perfect	V-ing perfect
I must have operated you must have operated he must have operated we must have operated you must have operated they must have operated	I must have been operating you must have been operating he must have been operating we must have been operating you must have been operating they must have been operating

Negation

Simple form	V-ing form
I mustn't operate you mustn't operate he mustn't operate we mustn't operate you mustn't operate they mustn't operate	I mustn't be operating you mustn't be operating he mustn't be operating we mustn't be operating you mustn't be operating they mustn't be operating
Perfect	V-ing perfect
I mustn't have operated you mustn't have operated he mustn't have operated we mustn't have operated you mustn't have operated they mustn't have operated	I mustn't have been operating you mustn't have been operating he mustn't have been operating we mustn't have been operating you mustn't have been operating they mustn't have been operating

Interrogative form

Simple form	V-ing form
must I operate? must you operate? must he operate? must we operate? must you operate? must they operate?	must I be operating? must you be operating? must he be operating? must we be operating? must you be operating? must they be operating?
Perfect	V-ing perfect
must I have operated? must you have operated? must he have operated? must we have operated? must you have operated? must they have operated?	must I have been operating? must you have been operating? must he have been operating? must we have been operating? must you have been operating? must they have been operating?

Interro-negative form

Simple form	V-ing form
mustn't I operate? mustn't you operate? mustn't he operate? mustn't we operate? mustn't you operate? mustn't they operate?	mustn't I be operating? mustn't you be operating? mustn't he be operating? mustn't we be operating? mustn't you be operating? mustn't they be operating?
Perfect	V-ing perfect
mustn't I have operated? mustn't you have operated? mustn't he have operated? mustn't we have operated? mustn't you have operated? mustn't they have operated?	mustn't I have been operating? mustn't you have been operating? mustn't he have been operating? mustn't we have been operating? mustn't you have been operating? mustn't they have been operating?