could reserve
Regular verb: reserve - reserved- reserved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could reserve
you could reserve
she could reserve
we could reserve
you could reserve
they could reserve 	I could be reserving
you could be reserving
she could be reserving
we could be reserving
you could be reserving
they could be reserving	I could have reserved
you could have reserved
she could have reserved
we could have reserved
you could have reserved
they could have reserved	I could have been reserving
you could have been reserving
she could have been reserving
we could have been reserving
you could have been reserving
they could have been reserving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not reserve
you could not reserve
she could not reserve
we could not reserve
you could not reserve
they could not reserve 	I could not be reserving
you could not be reserving
she could not be reserving
we could not be reserving
you could not be reserving
they could not be reserving	I could not have reserved
you could not have reserved
she could not have reserved
we could not have reserved
you could not have reserved
they could not have reserved	I could not have been reserving
you could not have been reserving
she could not have been reserving
we could not have been reserving
you could not have been reserving
they could not have been reserving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I reserve?
could you reserve?
could she reserve?
could we reserve?
could you reserve?
could they reserve? 	could I be reserving?
could you be reserving?
could she be reserving?
could we be reserving?
could you be reserving?
could they be reserving? 	could I have reserved?
could you have reserved?
could she have reserved?
could we have reserved?
could you have reserved?
could they have reserved? 	could I have been reserving?
could you have been reserving?
could she have been reserving?
could we have been reserving?
could you have been reserving?
could they have been reserving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not reserve?
could you not reserve?
could she not reserve?
could we not reserve?
could you not reserve?
could they not reserve? 	could I not be reserving?
could you not be reserving?
could she not be reserving?
could we not be reserving?
could you not be reserving?
could they not be reserving? 	could I not have reserved?
could you not have reserved?
could she not have reserved?
could we not have reserved?
could you not have reserved?
could they not have reserved? 	could I not have been reserving?
could you not have been reserving?
could she not have been reserving?
could we not have been reserving?
could you not have been reserving?
could they not have been reserving?