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