YOU SAID:

Little brother standing on his own two feet? (not for long)

INTO JAPANESE

弟は自分の両足で立っていますか？ （長くはない）

BACK INTO ENGLISH

Is your brother standing on his feet? (Not long)

INTO JAPANESE

あなたの兄弟は彼の足元に立っていますか？ （長くない）

BACK INTO ENGLISH

Is your brother standing at his feet? (Not long)

INTO JAPANESE

あなたの兄弟は彼の足元に立っていますか？ （長くない）

BACK INTO ENGLISH

Is your brother standing at his feet? (Not long)