YOU SAID:
Never gonna give you up...
INTO JAPANESE
決してあなたをあきらめるつもりはありません.
BACK INTO ENGLISH
I'm never going to give up on you.
INTO JAPANESE
私は決してあなたをあきらめるつもりはありません。
BACK INTO ENGLISH
I'm never going to give up on you.
That didn't even make that much sense in English.