根本 vs 到底 (at all vs on earth)
Flat denial, burning question
- They look similar but do different jobs.
- fundamental根本 = (not) at all / fundamentally — often with a negative.
- finally到底 = after all / on earth — presses for the real answer.
fundamental根本 = at all / fundamentally
- I / me我fundamental根本not不to know知道 = "I have no idea at all."
I我at all根本not不know知道。
- fundamental根本not不to know知道 = "have no idea at all."
Practice
I have no idea at all: 我 ____ 不知道。
根本 = at all: 我根本不知道.
finally到底 = on earth / after all
- you你finally到底to want to想要what什么？ = "what on earth do you want?"
you你on earth到底want想what什么？
- you你finally到底to want to想要what什么 = "what do you want, in the end?"
Explore
Which word completes the sentence?
根本 denies from the root ('not at all'); 到底 presses a question or asserts 'after all'.
Practice
Which means “(not) at all / fundamentally”?
根本 = at all (often + negative); 到底 = on earth / after all.
Practice
到底 presses for the real answer (“on earth / after all”).
Yes — 你到底想要什么?
Recap
Key idea
- fundamental根本 = (not) at all / fundamentally: fundamental根本not不to know知道
- finally到底 = after all / on earth (presses for the answer): you你finally到底to want to想要what什么?
- Different jobs — don't swap them
Read the full reference: HSK 6 grammar — Comparing similar adverbs.