I'm currently learning about っぱなし. My grammar book (Dictionary of Intermediate Japanese Grammar) says that when the verb is intransitive it means 'keep doing' but when the verb is transitive it means 'leave in a certain state'. It gives the example:
I borrowed money from a friend and still haven't paid it back.
If I hadn't read the bit about transitive/intransitive I would have translated that as "I still keep borrowing money" e.g. every month I have to borrow money.
How would I express that idea of: keep doing a transitive action? e.g. I keep eating cake from the fridge.