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