YOU SAID:

my dad fell on the floor and danced until his stance changed

INTO JAPANESE

父は床に倒れ、姿勢が変わるまで踊り続けた

BACK INTO ENGLISH

My father fell to the floor and continued dancing until he changed his posture.

INTO JAPANESE

父は床に倒れ、姿勢を変えるまで踊り続けました。

BACK INTO ENGLISH

My father fell to the floor and continued dancing until he changed his position.

INTO JAPANESE

父は床に倒れ、体勢を変えるまで踊り続けました。

BACK INTO ENGLISH

My father fell to the floor and continued dancing until he changed his position.