"I think it is time for me to apologize the coach."
Translation:Tôi nghĩ đến lúc tôi phải xin lỗi huấn luyện viên rồi.
That or "apologize for the coach." One of the prepositions has to be there. It doesn't make sense as it is.
wrong English. someone doesn't apologize someone else but someone apologizes TO someone else