What is the difference between 很, 十分 and 非常?
很 = very


很 謝謝 你 = Thank you very much
你 很 厲害 = You are very good.

非常 = 十分 = extremely


十分/非常 謝謝 你
你 十分/非常 厲害

Word by word:


非-常 = extra-ordinary, ab-normal
十分 = 100 percent