thank you for 是加doing还是 to do？ 英语好的！！ thank you for doing sth...

thank you for \u662f\u4ec0\u4e48\u7ed3\u6784,\u540e\u9762\u52a0\u4ec0\u4e48(doing ,do,to do,dos)\u8fd8\u662f\u4ec0\u4e48

thank you for n.
thank you for doing sth.

Thank you for +\u540d\u8bcd\u6216\u52a8\u540d\u8bcd\u3002\u610f\u601d\u662f\u201c\u8c22\u8c22\u4f60\u2026\u3002\u201d\uff0c"for\u2026"\u8868\u793a\u611f\u8c22\u7684\u539f\u56e0\u3002\u4f8b\u5982\uff1a

\u3000\u3000Thank you for your food.
\u3000\u3000\u8c22\u8c22\u4f60\u7684\u996d\u83dc\u3002

\u3000\u3000Thank you for your coming to help us.
\u3000\u3000\u8c22\u8c22\u4f60\u6765\u5e2e\u52a9\u6211\u4eec\u3002

\u3000\u3000Many thanks for giving us so much help.
\u3000\u3000\u8c22\u8c22\u4f60\u7ed9\u4e86\u6211\u4eec\u8fd9\u4e48\u591a\u7684\u5e2e\u52a9\u3002

1) Thank you for helping with my maths.      （介词for后genV-ing动名词）

2) It's nice of you to help you with my maths. （动词不定式to do ..部分为实质主语，呼应it形式主语具体内容）

介词后的动词用ing形式

Thank you for helping me.
谢谢你帮助我。