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