could officiate
Regular verb: officiate - officiated- officiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could officiate
you could officiate
she could officiate
we could officiate
you could officiate
they could officiate 	I could be officiating
you could be officiating
she could be officiating
we could be officiating
you could be officiating
they could be officiating	I could have officiated
you could have officiated
she could have officiated
we could have officiated
you could have officiated
they could have officiated	I could have been officiating
you could have been officiating
she could have been officiating
we could have been officiating
you could have been officiating
they could have been officiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not officiate
you could not officiate
she could not officiate
we could not officiate
you could not officiate
they could not officiate 	I could not be officiating
you could not be officiating
she could not be officiating
we could not be officiating
you could not be officiating
they could not be officiating	I could not have officiated
you could not have officiated
she could not have officiated
we could not have officiated
you could not have officiated
they could not have officiated	I could not have been officiating
you could not have been officiating
she could not have been officiating
we could not have been officiating
you could not have been officiating
they could not have been officiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I officiate?
could you officiate?
could she officiate?
could we officiate?
could you officiate?
could they officiate? 	could I be officiating?
could you be officiating?
could she be officiating?
could we be officiating?
could you be officiating?
could they be officiating? 	could I have officiated?
could you have officiated?
could she have officiated?
could we have officiated?
could you have officiated?
could they have officiated? 	could I have been officiating?
could you have been officiating?
could she have been officiating?
could we have been officiating?
could you have been officiating?
could they have been officiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not officiate?
could you not officiate?
could she not officiate?
could we not officiate?
could you not officiate?
could they not officiate? 	could I not be officiating?
could you not be officiating?
could she not be officiating?
could we not be officiating?
could you not be officiating?
could they not be officiating? 	could I not have officiated?
could you not have officiated?
could she not have officiated?
could we not have officiated?
could you not have officiated?
could they not have officiated? 	could I not have been officiating?
could you not have been officiating?
could she not have been officiating?
could we not have been officiating?
could you not have been officiating?
could they not have been officiating?