英语中表示感谢时都有哪些说法?

Thanks a million.
Thank you from the bottom of my heart.
Thanks heaps.
Thanks, I appreciate it.

Just some examples

thanks(a lot\a million)
i appreciate it
that's very kind\nice of you
how can i thank you enough
i don't know how to thank you

I do appreciate your kindness.

it's very kind of you.

you are so kind

may god bless you

i am so apperatiate of it what you have done for me

Many thanks.