一句簡單的漢譯英"也許我到那裡時,你已經在那裡等候多時了「Maybe you have been waiting for

題目：

一句簡單的漢譯英
"也許我到那裡時,你已經在那裡等候多時了「
Maybe you have been waiting for me when I arrive there.這麼翻譯對麼?請指教.
用將來完成進行時（Maybe you will have been waiting for a long time when I arrive there.)
還是現在完成進行時（Maybe you have been waiting for a long time when I arrive there.)
以上兩種從句(I arrive there)都是現在時麼？

解答：

Maybe you have been waiting (for me) for a long time when I arrive there.
多時