pay/repay/pay back

[Will17]

Hello!

Which verb is best in this case?:

If I won €1m, I would finish paying/repaying/paying back my house.

Thank you
W
Ps: Can we ever use the structure "finish to do smth"?

[Barb_D]

Will, in the US, we'd say "I'd pay off my house."

I can't think of a time when "finish to do" would sound right, but every time I say "never" someone comes up with an example. Generally, though, it's finish Xing.