不能及时回复英文

sorry for the delay of reply

你好，你给的句子应该是I'm afraid I can't answer you in time because I'm studying for the text。

Sorry for not replying timely.

in time 是准时不是及时的意思，应该改用on time或promptlyI may not be able to reply to a message promptly.

I can't write English, so I can't reply your message Immediately!

I am sorry for my late reply或I am sorry for my delayed reply.或I am sorry for my late response.

以下为英文表达：I am afraid I can't reply you immediately,because I am studying hard for the exam.

改为I can't reply your message in time/instantly.可能要好点吧！^_^