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