1. ((係助詞))
    • これこそ探していたものです
    • This is 「the very thing [just the thing] that I have been looking for.
    • 彼はそれこそびっくりした
    • He was really terribly frightened.
    • 私こそお便りしなければなりませんでした
    • It's I who should have written to you.
    • ほめこそすれ,けなしたことは一度もない
    • I have praised him often but never once criticized him.
    • 彼こそその使命にうってつけだ
    • He is 「the ideal man [just the right man] for that mission.
    • 今年こそがんばろう
    • This year I'll really make an effort.