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