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 couldn't crumble away you couldn't crumble away he couldn't crumble away we couldn't crumble away you couldn't crumble away they couldn't crumble away
V-ing form
I couldn't be crumble awaying you couldn't be crumble awaying he couldn't be crumble awaying we couldn't be crumble awaying you couldn't be crumble awaying they couldn't be crumble awaying
Perfect
I couldn't have crumble awayed you couldn't have crumble awayed he couldn't have crumble awayed we couldn't have crumble awayed you couldn't have crumble awayed they couldn't have crumble awayed
V-ing perfect
I couldn't have been crumble awaying you couldn't have been crumble awaying he couldn't have been crumble awaying we couldn't have been crumble awaying you couldn't have been crumble awaying they couldn't 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
couldn't I crumble away? couldn't you crumble away? couldn't he crumble away? couldn't we crumble away? couldn't you crumble away? couldn't they crumble away?
V-ing form
couldn't I be crumble awaying? couldn't you be crumble awaying? couldn't he be crumble awaying? couldn't we be crumble awaying? couldn't you be crumble awaying? couldn't they be crumble awaying?
Perfect
couldn't I have crumble awayed? couldn't you have crumble awayed? couldn't he have crumble awayed? couldn't we have crumble awayed? couldn't you have crumble awayed? couldn't they have crumble awayed?
V-ing perfect
couldn't I have been crumble awaying? couldn't you have been crumble awaying? couldn't he have been crumble awaying? couldn't we have been crumble awaying? couldn't you have been crumble awaying? couldn't they have been crumble awaying?