Don’t say:
– Thank you for help me.
– Thank you for come to see me.
– Thanks for let me know.
Say this:
– Thank you for helping me.
– Thank you for coming to see me.
– Thanks for letting me know.
Remember:
When you use “thank you for”, with some kind of action (doing something), use -ing.
Thank you for inviting me … dancing with me … not smoking … listening to me …