1. I have to prepare for earning money in the future.
2. I have to prepare for making money in the future.
3. I have to prepare for geting money in the future.
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Are they all the same? Is 'get money' used frequently?
1 and 2 mean approximately the same thing, but 3 could mean different things!
"getting money" could mean earning it, receiving it as a gift, taking it from someone else ...