could expatiate
Regular verb: expatiate - expatiated- expatiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could expatiate
you could expatiate
she could expatiate
we could expatiate
you could expatiate
they could expatiate 	I could be expatiating
you could be expatiating
she could be expatiating
we could be expatiating
you could be expatiating
they could be expatiating	I could have expatiated
you could have expatiated
she could have expatiated
we could have expatiated
you could have expatiated
they could have expatiated	I could have been expatiating
you could have been expatiating
she could have been expatiating
we could have been expatiating
you could have been expatiating
they could have been expatiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not expatiate
you could not expatiate
she could not expatiate
we could not expatiate
you could not expatiate
they could not expatiate 	I could not be expatiating
you could not be expatiating
she could not be expatiating
we could not be expatiating
you could not be expatiating
they could not be expatiating	I could not have expatiated
you could not have expatiated
she could not have expatiated
we could not have expatiated
you could not have expatiated
they could not have expatiated	I could not have been expatiating
you could not have been expatiating
she could not have been expatiating
we could not have been expatiating
you could not have been expatiating
they could not have been expatiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I expatiate?
could you expatiate?
could she expatiate?
could we expatiate?
could you expatiate?
could they expatiate? 	could I be expatiating?
could you be expatiating?
could she be expatiating?
could we be expatiating?
could you be expatiating?
could they be expatiating? 	could I have expatiated?
could you have expatiated?
could she have expatiated?
could we have expatiated?
could you have expatiated?
could they have expatiated? 	could I have been expatiating?
could you have been expatiating?
could she have been expatiating?
could we have been expatiating?
could you have been expatiating?
could they have been expatiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not expatiate?
could you not expatiate?
could she not expatiate?
could we not expatiate?
could you not expatiate?
could they not expatiate? 	could I not be expatiating?
could you not be expatiating?
could she not be expatiating?
could we not be expatiating?
could you not be expatiating?
could they not be expatiating? 	could I not have expatiated?
could you not have expatiated?
could she not have expatiated?
could we not have expatiated?
could you not have expatiated?
could they not have expatiated? 	could I not have been expatiating?
could you not have been expatiating?
could she not have been expatiating?
could we not have been expatiating?
could you not have been expatiating?
could they not have been expatiating?