English verb conjugation
COULD JOY

Regular verb: joy - joyed - joyed

Affirmation

Simple form	V-ing form
I could joy you could joy she could joy we could joy you could joy they could joy	I could be joying you could be joying she could be joying we could be joying you could be joying they could be joying
Perfect	V-ing perfect
I could have joyed you could have joyed she could have joyed we could have joyed you could have joyed they could have joyed	I could have been joying you could have been joying she could have been joying we could have been joying you could have been joying they could have been joying

Negation

Simple form	V-ing form
I could not joy you could not joy she could not joy we could not joy you could not joy they could not joy	I could not be joying you could not be joying she could not be joying we could not be joying you could not be joying they could not be joying
Perfect	V-ing perfect
I could not have joyed you could not have joyed she could not have joyed we could not have joyed you could not have joyed they could not have joyed	I could not have been joying you could not have been joying she could not have been joying we could not have been joying you could not have been joying they could not have been joying

Interrogative form

Simple form	V-ing form
could I joy? could you joy? could she joy? could we joy? could you joy? could they joy?	could I be joying? could you be joying? could she be joying? could we be joying? could you be joying? could they be joying?
Perfect	V-ing perfect
could I have joyed? could you have joyed? could she have joyed? could we have joyed? could you have joyed? could they have joyed?	could I have been joying? could you have been joying? could she have been joying? could we have been joying? could you have been joying? could they have been joying?

Interro-negative form

Simple form	V-ing form
could I not joy? could you not joy? could she not joy? could we not joy? could you not joy? could they not joy?	could I not be joying? could you not be joying? could she not be joying? could we not be joying? could you not be joying? could they not be joying?
Perfect	V-ing perfect
could I not have joyed? could you not have joyed? could she not have joyed? could we not have joyed? could you not have joyed? could they not have joyed?	could I not have been joying? could you not have been joying? could she not have been joying? could we not have been joying? could you not have been joying? could they not have been joying?