Appreciate your being here文法

請教英語大師們:

1. We appreciate your being here. 這句文法的解析。

2. 在google搜尋下:
We appreciate your being here. 遠比 We appreciate you being here. 多。
但是:
We appreciate you helping us. 卻又比 We appreciate your helping us. 多!
怎麼回事?兩個文法不同嗎?都可以說嗎?

感恩。
4 個解答 4