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