having been doing是什么時態怎么翻譯

　　What? Jews having been doing it on Christmas since forever.

　　什么？猶太人向來都是這樣過圣誕節的。

　　There is absolutely no point doing something if you are not having fun doing it.

　　如果做的事情沒有樂趣，就完全沒有必要做它。

　　I'm having fun doing this!

　　和她在一起我感覺太開心太有趣了！

　　I really feel I am doing something worthwhile and I am having a great time doing it.

　　我的確覺得自己在做一些值得做的，也很高興去做。

　　I'm having problems with my Internet connection.

　　我的互聯網連接有問題。