It is nice sitting/to sit/to be sitting here with you.
这三者在意思上有啥区别?谢谢!
It is nice sitting here with you.
你和他常常坐在这,形成习惯,此时也许你没并没有坐在那,但你依然对这种习惯行为发表上述的感叹。
It is nice to sit here with you.
他打电话给你说5分钟后到那和你坐在一起聊天,你可以以上述内容回答。
It is nice to be sitting with you.
你们正坐在一起呢。你发出感叹。
请参考英语语法网的以下文章:
http://www.yygrammar.com/Article/200807/411.html