1. Thanks a lot(多谢)
例：Thanks a lot for looking after the children.
2. Thanks very much(非常感谢)
例：Thanks very much for making dinner tonight.
3. Thank you very much(非常感谢你)
例：Thank you very much for dinner – it was great.
4. Thank you so much(太谢谢你了)
例：Thank you so much for helping me out today.
*注* Thanks相比Thank you更口语化，后者更正式、感情更丰富一些。
6. Many thanks(多谢)
这是在信件往来中常用的正式说法，比如和客户、供应商等商务对象往来时说这句客套话。
例：Many thanks for the lovely present.
7. Appreciate(感谢)
这个单词用来礼貌地向某人表示感谢，表示你对别人做的某件事很感激。
例：I appreciate your concern, but honestly, I'm fine.
8. Much obliged(深表谢意、感激不尽)
这是一种极其正式的谢谢说法，所以被使用的频率也较低，不常见到人用。
例：I am much obliged to you for your patience during the recent difficulties.
9. I owe you one/I owe you big time.(我欠你个人情/我欠你一个大人情)
同样在别人帮了你大忙后，你还可以说这句话来表示你心中的感恩戴德之情。
例：
You got me promoted. I owe you one.
You helped me out with the essay. I owe you big time.
10. You’re too kind(你真是太好了)
这是一种礼貌地表达感谢的方式，通常在语气上比起其他的词语更加诚恳、真实。
例：Thank you for for the glowing praise. You’re too kind.
扩展资料：
英文书信作文常用感谢信的句子：
1. Thank you so much for …….
2. I would like to thank you from the bottom of my heart for……
3. I’m writing to express my sincere gratitude for……
4. I’m grateful to you for ……
5. I truly appreciate your ……
6. Words fail to convey my gratitude to you.