could revive
Regular verb: revive - revived- revived

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could revive
you could revive
she could revive
we could revive
you could revive
they could revive 	I could be reviving
you could be reviving
she could be reviving
we could be reviving
you could be reviving
they could be reviving	I could have revived
you could have revived
she could have revived
we could have revived
you could have revived
they could have revived	I could have been reviving
you could have been reviving
she could have been reviving
we could have been reviving
you could have been reviving
they could have been reviving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not revive
you could not revive
she could not revive
we could not revive
you could not revive
they could not revive 	I could not be reviving
you could not be reviving
she could not be reviving
we could not be reviving
you could not be reviving
they could not be reviving	I could not have revived
you could not have revived
she could not have revived
we could not have revived
you could not have revived
they could not have revived	I could not have been reviving
you could not have been reviving
she could not have been reviving
we could not have been reviving
you could not have been reviving
they could not have been reviving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I revive?
could you revive?
could she revive?
could we revive?
could you revive?
could they revive? 	could I be reviving?
could you be reviving?
could she be reviving?
could we be reviving?
could you be reviving?
could they be reviving? 	could I have revived?
could you have revived?
could she have revived?
could we have revived?
could you have revived?
could they have revived? 	could I have been reviving?
could you have been reviving?
could she have been reviving?
could we have been reviving?
could you have been reviving?
could they have been reviving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not revive?
could you not revive?
could she not revive?
could we not revive?
could you not revive?
could they not revive? 	could I not be reviving?
could you not be reviving?
could she not be reviving?
could we not be reviving?
could you not be reviving?
could they not be reviving? 	could I not have revived?
could you not have revived?
could she not have revived?
could we not have revived?
could you not have revived?
could they not have revived? 	could I not have been reviving?
could you not have been reviving?
could she not have been reviving?
could we not have been reviving?
could you not have been reviving?
could they not have been reviving?