must centralise
Regular verb: centralise - centralised- centralised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must centralise
you must centralise
he must centralise
we must centralise
you must centralise
they must centralise 	I must be centralising
you must be centralising
he must be centralising
we must be centralising
you must be centralising
they must be centralising	I must have centralised
you must have centralised
he must have centralised
we must have centralised
you must have centralised
they must have centralised	I must have been centralising
you must have been centralising
he must have been centralising
we must have been centralising
you must have been centralising
they must have been centralising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't centralise
you mustn't centralise
he mustn't centralise
we mustn't centralise
you mustn't centralise
they mustn't centralise 	I mustn't be centralising
you mustn't be centralising
he mustn't be centralising
we mustn't be centralising
you mustn't be centralising
they mustn't be centralising	I mustn't have centralised
you mustn't have centralised
he mustn't have centralised
we mustn't have centralised
you mustn't have centralised
they mustn't have centralised	I mustn't have been centralising
you mustn't have been centralising
he mustn't have been centralising
we mustn't have been centralising
you mustn't have been centralising
they mustn't have been centralising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I centralise?
must you centralise?
must he centralise?
must we centralise?
must you centralise?
must they centralise? 	must I be centralising?
must you be centralising?
must he be centralising?
must we be centralising?
must you be centralising?
must they be centralising? 	must I have centralised?
must you have centralised?
must he have centralised?
must we have centralised?
must you have centralised?
must they have centralised? 	must I have been centralising?
must you have been centralising?
must he have been centralising?
must we have been centralising?
must you have been centralising?
must they have been centralising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I centralise?
mustn't you centralise?
mustn't he centralise?
mustn't we centralise?
mustn't you centralise?
mustn't they centralise? 	mustn't I be centralising?
mustn't you be centralising?
mustn't he be centralising?
mustn't we be centralising?
mustn't you be centralising?
mustn't they be centralising? 	mustn't I have centralised?
mustn't you have centralised?
mustn't he have centralised?
mustn't we have centralised?
mustn't you have centralised?
mustn't they have centralised? 	mustn't I have been centralising?
mustn't you have been centralising?
mustn't he have been centralising?
mustn't we have been centralising?
mustn't you have been centralising?
mustn't they have been centralising?