Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could sough sough you could sough sough he could sough sough we could sough sough you could sough sough they could sough sough
V-ing form
I could be sough soughing you could be sough soughing he could be sough soughing we could be sough soughing you could be sough soughing they could be sough soughing
Perfect
I could have sough soughed you could have sough soughed he could have sough soughed we could have sough soughed you could have sough soughed they could have sough soughed
V-ing perfect
I could have been sough soughing you could have been sough soughing he could have been sough soughing we could have been sough soughing you could have been sough soughing they could have been sough soughing
Negation
Simple form
I could not sough sough you could not sough sough he could not sough sough we could not sough sough you could not sough sough they could not sough sough
V-ing form
I could not be sough soughing you could not be sough soughing he could not be sough soughing we could not be sough soughing you could not be sough soughing they could not be sough soughing
Perfect
I could not have sough soughed you could not have sough soughed he could not have sough soughed we could not have sough soughed you could not have sough soughed they could not have sough soughed
V-ing perfect
I could not have been sough soughing you could not have been sough soughing he could not have been sough soughing we could not have been sough soughing you could not have been sough soughing they could not have been sough soughing
Interrogative form
Simple form
could I sough sough? could you sough sough? could he sough sough? could we sough sough? could you sough sough? could they sough sough?
V-ing form
could I be sough soughing? could you be sough soughing? could he be sough soughing? could we be sough soughing? could you be sough soughing? could they be sough soughing?
Perfect
could I have sough soughed? could you have sough soughed? could he have sough soughed? could we have sough soughed? could you have sough soughed? could they have sough soughed?
V-ing perfect
could I have been sough soughing? could you have been sough soughing? could he have been sough soughing? could we have been sough soughing? could you have been sough soughing? could they have been sough soughing?
Interro-negative form
Simple form
could I not sough sough? could you not sough sough? could he not sough sough? could we not sough sough? could you not sough sough? could they not sough sough?
V-ing form
could I not be sough soughing? could you not be sough soughing? could he not be sough soughing? could we not be sough soughing? could you not be sough soughing? could they not be sough soughing?
Perfect
could I not have sough soughed? could you not have sough soughed? could he not have sough soughed? could we not have sough soughed? could you not have sough soughed? could they not have sough soughed?
V-ing perfect
could I not have been sough soughing? could you not have been sough soughing? could he not have been sough soughing? could we not have been sough soughing? could you not have been sough soughing? could they not have been sough soughing?