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Kotomora
JLPT N3EverydayEarnest

こそthis very one; precisely

こそ singles out one thing as the one that matters: this one, not the others you might have thought of. You'll hear it first in a few set phrases.

How to form it

Noun + こそ

It usually takes the place of は, が or を. に stays, in front of it: あなたにこそ.

What it says
This one, and not the others. There is always something it is set against, said or unsaid.
Before it
A person, a thing or a time. 〜ときこそ is "that is exactly when".
Tone
Earnest. Outside the set phrases it sounds like someone making a point.
Where you'll meet it
Thanks and greetings, resolutions, advice, speeches, advertising.

The phrases you'll hear first

こちらこそ hands thanks, an apology or a greeting back: I should be the one saying that.

今こん度どこそ, 今日きょうこそ, 今年ことしこそ: this time, and not the times before. You meant to, or you tried, and it didn't happen.

Today I really am going to bed early.

You meant to yesterday too, and didn't.

It turns a remark back: that goes for you more than for me. With a name, 田た中なかさんこそ.

This, not that

Close neighbours

からこそN3

The same こそ on a reason: this is exactly why, though you might not have expected it.

てこそN2

After a て-form: only by doing this.

さえN3

さえ marks the extreme case: "even". こそ marks the one that counts.

Check yourself

1What does this tell you?

今年ことしこそ、海かい外がい旅りょ行こうに行いきたい。

Choose an answer to see why.

2Which one fits?

初しょ心しん者しゃ(  )、この辞じ書しょをすすめたい。

Choose an answer to see why.

More detail

ようこそ, "welcome", is よく with this こそ.

こそ can also keep が or は after it, with the same meaning: これこそが, 今こん度どこそは.

More sentences