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