English verb conjugation
COULD QUOTH

Regular verb: quoth - quothed - quothed

Affirmation

Simple form	V-ing form
I could quoth you could quoth he could quoth we could quoth you could quoth they could quoth	I could be quothing you could be quothing he 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 he 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 he 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 couldn't quoth you couldn't quoth he couldn't quoth we couldn't quoth you couldn't quoth they couldn't quoth	I couldn't be quothing you couldn't be quothing he couldn't be quothing we couldn't be quothing you couldn't be quothing they couldn't be quothing
Perfect	V-ing perfect
I couldn't have quothed you couldn't have quothed he couldn't have quothed we couldn't have quothed you couldn't have quothed they couldn't have quothed	I couldn't have been quothing you couldn't have been quothing he couldn't have been quothing we couldn't have been quothing you couldn't have been quothing they couldn't have been quothing

Interrogative form

Simple form	V-ing form
could I quoth? could you quoth? could he quoth? could we quoth? could you quoth? could they quoth?	could I be quothing? could you be quothing? could he 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 he 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 he 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
couldn't I quoth? couldn't you quoth? couldn't he quoth? couldn't we quoth? couldn't you quoth? couldn't they quoth?	couldn't I be quothing? couldn't you be quothing? couldn't he be quothing? couldn't we be quothing? couldn't you be quothing? couldn't they be quothing?
Perfect	V-ing perfect
couldn't I have quothed? couldn't you have quothed? couldn't he have quothed? couldn't we have quothed? couldn't you have quothed? couldn't they have quothed?	couldn't I have been quothing? couldn't you have been quothing? couldn't he have been quothing? couldn't we have been quothing? couldn't you have been quothing? couldn't they have been quothing?