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 must not centralise
you must not centralise
he must not centralise
we must not centralise
you must not centralise
they must not centralise 	I must not be centralising
you must not be centralising
he must not be centralising
we must not be centralising
you must not be centralising
they must not be centralising	I must not have centralised
you must not have centralised
he must not have centralised
we must not have centralised
you must not have centralised
they must not have centralised	I must not have been centralising
you must not have been centralising
he must not have been centralising
we must not have been centralising
you must not have been centralising
they must not 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 	
must I not centralise?
must you not centralise?
must he not centralise?
must we not centralise?
must you not centralise?
must they not centralise? 	must I not be centralising?
must you not be centralising?
must he not be centralising?
must we not be centralising?
must you not be centralising?
must they not be centralising? 	must I not have centralised?
must you not have centralised?
must he not have centralised?
must we not have centralised?
must you not have centralised?
must they not have centralised? 	must I not have been centralising?
must you not have been centralising?
must he not have been centralising?
must we not have been centralising?
must you not have been centralising?
must they not have been centralising?