English verb conjugation
COULD QUOTH

Regular verb: quoth - quothed - quothed

Affirmation

Simple form	V-ing form
I could quoth you could quoth she could quoth we could quoth you could quoth they could quoth	I could be quothing you could be quothing she could be quothing we could be quothing you could be quothing they could be quothing
Perfect	V-ing perfect
I could have quothed you could have quothed she could have quothed we could have quothed you could have quothed they could have quothed	I could have been quothing you could have been quothing she could have been quothing we could have been quothing you could have been quothing they could have been quothing

Negation

Simple form	V-ing form
I could not quoth you could not quoth she could not quoth we could not quoth you could not quoth they could not quoth	I could not be quothing you could not be quothing she could not be quothing we could not be quothing you could not be quothing they could not be quothing
Perfect	V-ing perfect
I could not have quothed you could not have quothed she could not have quothed we could not have quothed you could not have quothed they could not have quothed	I could not have been quothing you could not have been quothing she could not have been quothing we could not have been quothing you could not have been quothing they could not have been quothing

Interrogative form

Simple form	V-ing form
could I quoth? could you quoth? could she quoth? could we quoth? could you quoth? could they quoth?	could I be quothing? could you be quothing? could she be quothing? could we be quothing? could you be quothing? could they be quothing?
Perfect	V-ing perfect
could I have quothed? could you have quothed? could she have quothed? could we have quothed? could you have quothed? could they have quothed?	could I have been quothing? could you have been quothing? could she have been quothing? could we have been quothing? could you have been quothing? could they have been quothing?

Interro-negative form

Simple form	V-ing form
could I not quoth? could you not quoth? could she not quoth? could we not quoth? could you not quoth? could they not quoth?	could I not be quothing? could you not be quothing? could she not be quothing? could we not be quothing? could you not be quothing? could they not be quothing?
Perfect	V-ing perfect
could I not have quothed? could you not have quothed? could she not have quothed? could we not have quothed? could you not have quothed? could they not have quothed?	could I not have been quothing? could you not have been quothing? could she not have been quothing? could we not have been quothing? could you not have been quothing? could they not have been quothing?