I wonder if you could let me know which one of the listed sentences below is more appropriate for thanking someone when the spend some time to help you?
Is there any uncommon or unidiomatic sentence between them that doesn't sound natural to you? If yes, please that explain me.
- Thank you for spending your time helping / to help me me.
- Thank you for putting your time helping / to help me.
- Thank you for taking your time helping / to help me.
To me, all the sentences above mean the same, but I need to know what do you think about their connotations?