YOU SAID:

i locked my sister in the basement

INTO JAPANESE

私は妹を地下に閉じ込めました

BACK INTO ENGLISH

I locked my sister underground

INTO JAPANESE

妹を地下に閉じ込めた

BACK INTO ENGLISH

Locked my sister in the basement

INTO JAPANESE

妹を地下に閉じ込めた

BACK INTO ENGLISH

Locked my sister in the basement