could throne
Regular verb: throne - throned- throned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could throne
you could throne
she could throne
we could throne
you could throne
they could throne 	I could be throning
you could be throning
she could be throning
we could be throning
you could be throning
they could be throning	I could have throned
you could have throned
she could have throned
we could have throned
you could have throned
they could have throned	I could have been throning
you could have been throning
she could have been throning
we could have been throning
you could have been throning
they could have been throning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not throne
you could not throne
she could not throne
we could not throne
you could not throne
they could not throne 	I could not be throning
you could not be throning
she could not be throning
we could not be throning
you could not be throning
they could not be throning	I could not have throned
you could not have throned
she could not have throned
we could not have throned
you could not have throned
they could not have throned	I could not have been throning
you could not have been throning
she could not have been throning
we could not have been throning
you could not have been throning
they could not have been throning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I throne?
could you throne?
could she throne?
could we throne?
could you throne?
could they throne? 	could I be throning?
could you be throning?
could she be throning?
could we be throning?
could you be throning?
could they be throning? 	could I have throned?
could you have throned?
could she have throned?
could we have throned?
could you have throned?
could they have throned? 	could I have been throning?
could you have been throning?
could she have been throning?
could we have been throning?
could you have been throning?
could they have been throning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not throne?
could you not throne?
could she not throne?
could we not throne?
could you not throne?
could they not throne? 	could I not be throning?
could you not be throning?
could she not be throning?
could we not be throning?
could you not be throning?
could they not be throning? 	could I not have throned?
could you not have throned?
could she not have throned?
could we not have throned?
could you not have throned?
could they not have throned? 	could I not have been throning?
could you not have been throning?
could she not have been throning?
could we not have been throning?
could you not have been throning?
could they not have been throning?