Regular verb: operate - operated - operated
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 |
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 |
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? |
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? |