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