YOU SAID:
Your boy was behind sep 11
INTO JAPANESE
あなたの男の子は9月11日の後ろにいました
BACK INTO ENGLISH
Your boy was behind September 11th
INTO JAPANESE
あなたの男の子は9月11日遅れていました
BACK INTO ENGLISH
Your boy was late on September 11th
INTO JAPANESE
あなたの男の子は9月11日に遅れました
BACK INTO ENGLISH
Your boy was late on September 11th
That didn't even make that much sense in English.
