Thanks a lot/Thanks a bunch/I appreciate it/It means a lot to me/I don't know what to say/That was kind of you/Thank you so much/Thank you very much.

非常谢谢用英语可以这么说：

1. Thanks

后面加上不同的词，就成了Thank you so much. / Thank you very much. / Thanks a lot./ Thanks a bunch。

2. I can't thank you enough.

Can't do sth enough就是再怎么都不为过，这句话就是无法形容对你有多感谢，感激不尽。

3. Cheers

Cheers在英国和澳洲更通用哦。

"I've bought you a drink." "Cheers, mate."

“我给你买了杯酒。”“谢谢，老兄。”
4. I appreciate it.

I/we appreciate这个表达形容我／我们对…非常感谢。

We really appreciate all the help you gave us last weekend.

你们上周末给予我们大力帮助，我们非常感谢。
5. I'm grateful for that/it.

你可以加一点副词，增强感谢的程度哦，比如：

I'll be eternally grateful to you.
我永远感激你。
6. It means a lot to me.

这个程度就更深啦，别人帮了大忙就可以这么说。

7. That was very kind of you.

It was great/awesome/thoughtful of you.

如果朋友做了很暖心的事情，以上的表达都很实用哦。

8. Oh, you shouldn't have.

比如别人给你礼物时，用来表示你没有期待如此。

对应中文就是“你太客气了”，比如：

Flowers! You shouldn't have!
“给我的鲜花！你不必送的！”
9. I don't know what to say.

形容激动地说不出话来。

（来源：沪江英语）