I must urinate you must urinate he must urinate we must urinate you must urinate they must urinate
V-ing form
I must be urinating you must be urinating he must be urinating we must be urinating you must be urinating they must be urinating
Perfect
I must have urinated you must have urinated he must have urinated we must have urinated you must have urinated they must have urinated
V-ing perfect
I must have been urinating you must have been urinating he must have been urinating we must have been urinating you must have been urinating they must have been urinating
Negation
Simple form
I mustn't urinate you mustn't urinate he mustn't urinate we mustn't urinate you mustn't urinate they mustn't urinate
V-ing form
I mustn't be urinating you mustn't be urinating he mustn't be urinating we mustn't be urinating you mustn't be urinating they mustn't be urinating
Perfect
I mustn't have urinated you mustn't have urinated he mustn't have urinated we mustn't have urinated you mustn't have urinated they mustn't have urinated
V-ing perfect
I mustn't have been urinating you mustn't have been urinating he mustn't have been urinating we mustn't have been urinating you mustn't have been urinating they mustn't have been urinating
Interrogative form
Simple form
must I urinate? must you urinate? must he urinate? must we urinate? must you urinate? must they urinate?
V-ing form
must I be urinating? must you be urinating? must he be urinating? must we be urinating? must you be urinating? must they be urinating?
Perfect
must I have urinated? must you have urinated? must he have urinated? must we have urinated? must you have urinated? must they have urinated?
V-ing perfect
must I have been urinating? must you have been urinating? must he have been urinating? must we have been urinating? must you have been urinating? must they have been urinating?
Interro-negative form
Simple form
mustn't I urinate? mustn't you urinate? mustn't he urinate? mustn't we urinate? mustn't you urinate? mustn't they urinate?
V-ing form
mustn't I be urinating? mustn't you be urinating? mustn't he be urinating? mustn't we be urinating? mustn't you be urinating? mustn't they be urinating?
Perfect
mustn't I have urinated? mustn't you have urinated? mustn't he have urinated? mustn't we have urinated? mustn't you have urinated? mustn't they have urinated?
V-ing perfect
mustn't I have been urinating? mustn't you have been urinating? mustn't he have been urinating? mustn't we have been urinating? mustn't you have been urinating? mustn't they have been urinating?