I can centralize you can centralize he can centralize we can centralize you can centralize they can centralize
V-ing form
I can be centralizing you can be centralizing he can be centralizing we can be centralizing you can be centralizing they can be centralizing
Perfect
I can have centralized you can have centralized he can have centralized we can have centralized you can have centralized they can have centralized
V-ing perfect
I can have been centralizing you can have been centralizing he can have been centralizing we can have been centralizing you can have been centralizing they can have been centralizing
Negation
Simple form
I can't centralize you can't centralize he can't centralize we can't centralize you can't centralize they can't centralize
V-ing form
I can't be centralizing you can't be centralizing he can't be centralizing we can't be centralizing you can't be centralizing they can't be centralizing
Perfect
I can't have centralized you can't have centralized he can't have centralized we can't have centralized you can't have centralized they can't have centralized
V-ing perfect
I can't have been centralizing you can't have been centralizing he can't have been centralizing we can't have been centralizing you can't have been centralizing they can't have been centralizing
Interrogative form
Simple form
can I centralize? can you centralize? can he centralize? can we centralize? can you centralize? can they centralize?
V-ing form
can I be centralizing? can you be centralizing? can he be centralizing? can we be centralizing? can you be centralizing? can they be centralizing?
Perfect
can I have centralized? can you have centralized? can he have centralized? can we have centralized? can you have centralized? can they have centralized?
V-ing perfect
can I have been centralizing? can you have been centralizing? can he have been centralizing? can we have been centralizing? can you have been centralizing? can they have been centralizing?
Interro-negative form
Simple form
can't I centralize? can't you centralize? can't he centralize? can't we centralize? can't you centralize? can't they centralize?
V-ing form
can't I be centralizing? can't you be centralizing? can't he be centralizing? can't we be centralizing? can't you be centralizing? can't they be centralizing?
Perfect
can't I have centralized? can't you have centralized? can't he have centralized? can't we have centralized? can't you have centralized? can't they have centralized?
V-ing perfect
can't I have been centralizing? can't you have been centralizing? can't he have been centralizing? can't we have been centralizing? can't you have been centralizing? can't they have been centralizing?