I must deputise you must deputise he must deputise we must deputise you must deputise they must deputise
V-ing form
I must be deputising you must be deputising he must be deputising we must be deputising you must be deputising they must be deputising
Perfect
I must have deputised you must have deputised he must have deputised we must have deputised you must have deputised they must have deputised
V-ing perfect
I must have been deputising you must have been deputising he must have been deputising we must have been deputising you must have been deputising they must have been deputising
Negation
Simple form
I must not deputise you must not deputise he must not deputise we must not deputise you must not deputise they must not deputise
V-ing form
I must not be deputising you must not be deputising he must not be deputising we must not be deputising you must not be deputising they must not be deputising
Perfect
I must not have deputised you must not have deputised he must not have deputised we must not have deputised you must not have deputised they must not have deputised
V-ing perfect
I must not have been deputising you must not have been deputising he must not have been deputising we must not have been deputising you must not have been deputising they must not have been deputising
Interrogative form
Simple form
must I deputise? must you deputise? must he deputise? must we deputise? must you deputise? must they deputise?
V-ing form
must I be deputising? must you be deputising? must he be deputising? must we be deputising? must you be deputising? must they be deputising?
Perfect
must I have deputised? must you have deputised? must he have deputised? must we have deputised? must you have deputised? must they have deputised?
V-ing perfect
must I have been deputising? must you have been deputising? must he have been deputising? must we have been deputising? must you have been deputising? must they have been deputising?
Interro-negative form
Simple form
must I not deputise? must you not deputise? must he not deputise? must we not deputise? must you not deputise? must they not deputise?
V-ing form
must I not be deputising? must you not be deputising? must he not be deputising? must we not be deputising? must you not be deputising? must they not be deputising?
Perfect
must I not have deputised? must you not have deputised? must he not have deputised? must we not have deputised? must you not have deputised? must they not have deputised?
V-ing perfect
must I not have been deputising? must you not have been deputising? must he not have been deputising? must we not have been deputising? must you not have been deputising? must they not have been deputising?