I can officiate you can officiate he can officiate we can officiate you can officiate they can officiate
V-ing form
I can be officiating you can be officiating he can be officiating we can be officiating you can be officiating they can be officiating
Perfect
I can have officiated you can have officiated he can have officiated we can have officiated you can have officiated they can have officiated
V-ing perfect
I can have been officiating you can have been officiating he can have been officiating we can have been officiating you can have been officiating they can have been officiating
Negation
Simple form
I can't officiate you can't officiate he can't officiate we can't officiate you can't officiate they can't officiate
V-ing form
I can't be officiating you can't be officiating he can't be officiating we can't be officiating you can't be officiating they can't be officiating
Perfect
I can't have officiated you can't have officiated he can't have officiated we can't have officiated you can't have officiated they can't have officiated
V-ing perfect
I can't have been officiating you can't have been officiating he can't have been officiating we can't have been officiating you can't have been officiating they can't have been officiating
Interrogative form
Simple form
can I officiate? can you officiate? can he officiate? can we officiate? can you officiate? can they officiate?
V-ing form
can I be officiating? can you be officiating? can he be officiating? can we be officiating? can you be officiating? can they be officiating?
Perfect
can I have officiated? can you have officiated? can he have officiated? can we have officiated? can you have officiated? can they have officiated?
V-ing perfect
can I have been officiating? can you have been officiating? can he have been officiating? can we have been officiating? can you have been officiating? can they have been officiating?
Interro-negative form
Simple form
can't I officiate? can't you officiate? can't he officiate? can't we officiate? can't you officiate? can't they officiate?
V-ing form
can't I be officiating? can't you be officiating? can't he be officiating? can't we be officiating? can't you be officiating? can't they be officiating?
Perfect
can't I have officiated? can't you have officiated? can't he have officiated? can't we have officiated? can't you have officiated? can't they have officiated?
V-ing perfect
can't I have been officiating? can't you have been officiating? can't he have been officiating? can't we have been officiating? can't you have been officiating? can't they have been officiating?