Japanese grammar
What does ～てこそ mean? Japanese grammar N2
～てこそ means only by (doing)… does one truly….
| Level (estimated, JLPT framework) | N2 |
|---|---|
| Structure | Vて + こそ N + であってこそ |
| Romaji | tekoso |
| Meaning | only by (doing)… does one truly… |
Forming it
| Noun | 健康 → 健康であってこそ |
|---|---|
| Verb | 努力して → 努力してこそ |
How to use it
Emphasizes that only by going through A does the value B become real. The second clause is positive.
- 「Vてこそ」 = only with A does B truly hold: 「努力してこそ、成功と言える」.
- The second clause is usually a positive assessment such as 「～と言える・～の価値がある・分かる」; it is not used for a bad outcome.
- Different from 「て初めて」 (which emphasizes the MOMENT of first realizing something): 「てこそ」 emphasizes the VALUE that A brings.
Examples
自分で経験してこそ、本当の難しさが分かる。
Only by experiencing it yourself do you understand the real difficulty.
健康であってこそ、仕事も楽しめる。
Only when you are healthy can you enjoy your work.
自分で経験してこそ、本当の大変さが分かる。
Only by experiencing it yourself do you grasp how hard it really is.
Keep in mind
- The following clause is positive.
- Not used for a random occurrence; it must be a condition that brings value.
Common mistakes
-
Wrong寝坊してこそ、遅刻した。
I overslept, so I was late.
Correct寝坊したから、遅刻した。
「てこそ」 states a condition that brings VALUE; it is not used for a bad cause.
-
Wrong努力するこそ、成功できる。
Only with effort can you succeed.
Correct努力してこそ、成功できる。
Must attach the て form.
-
Wrong失敗してこそ、会社が倒産した。
It's precisely because of failure that the company went bankrupt.
Correct失敗してこそ、学べることがある。
The clause after 「てこそ」 is a POSITIVE/valuable result, not a bad consequence.
-
Wrong経験するこそ、分かる。
Only by experiencing it do you understand.
Correct経験してこそ、分かる。
Attaches to the て form (経験して), not the dictionary form.
Exam tips
- 「てこそ」 = only with A does B truly hold (the second clause is positive).