YOU SAID:

I'll buy McDonald's for people who vote

INTO JAPANESE

投票してくれた人のためにマクドナルドを買うよ

BACK INTO ENGLISH

I'll buy McDonald's for the person who voted.

INTO JAPANESE

投票してくれた人にマクドナルドを買います。

BACK INTO ENGLISH

I will buy McDonald's for the person who voted.

INTO JAPANESE

投票してくれた人のためにマクドナルドを買います。

BACK INTO ENGLISH

I will buy McDonald's for the person who voted.