English verb conjugation
COULD GIRTH

Regular verb: girth - girthed - girthed

Affirmation

Simple form	V-ing form
I could girth you could girth he could girth we could girth you could girth they could girth	I could be girthing you could be girthing he could be girthing we could be girthing you could be girthing they could be girthing
Perfect	V-ing perfect
I could have girthed you could have girthed he could have girthed we could have girthed you could have girthed they could have girthed	I could have been girthing you could have been girthing he could have been girthing we could have been girthing you could have been girthing they could have been girthing

Negation

Simple form	V-ing form
I could not girth you could not girth he could not girth we could not girth you could not girth they could not girth	I could not be girthing you could not be girthing he could not be girthing we could not be girthing you could not be girthing they could not be girthing
Perfect	V-ing perfect
I could not have girthed you could not have girthed he could not have girthed we could not have girthed you could not have girthed they could not have girthed	I could not have been girthing you could not have been girthing he could not have been girthing we could not have been girthing you could not have been girthing they could not have been girthing

Interrogative form

Simple form	V-ing form
could I girth? could you girth? could he girth? could we girth? could you girth? could they girth?	could I be girthing? could you be girthing? could he be girthing? could we be girthing? could you be girthing? could they be girthing?
Perfect	V-ing perfect
could I have girthed? could you have girthed? could he have girthed? could we have girthed? could you have girthed? could they have girthed?	could I have been girthing? could you have been girthing? could he have been girthing? could we have been girthing? could you have been girthing? could they have been girthing?

Interro-negative form

Simple form	V-ing form
could I not girth? could you not girth? could he not girth? could we not girth? could you not girth? could they not girth?	could I not be girthing? could you not be girthing? could he not be girthing? could we not be girthing? could you not be girthing? could they not be girthing?
Perfect	V-ing perfect
could I not have girthed? could you not have girthed? could he not have girthed? could we not have girthed? could you not have girthed? could they not have girthed?	could I not have been girthing? could you not have been girthing? could he not have been girthing? could we not have been girthing? could you not have been girthing? could they not have been girthing?