Japanese grammar

What does ~こそすれ(動詞) mean? Japanese grammar N1

~こそすれ(動詞) means may indeed… but definitely not… (with verbs).

Quick facts
Level (estimated, JLPT framework)N1
StructureVます形 + こそすれ + ~ない
Romajikososure(doushi)
Meaningmay indeed… but definitely not… (with verbs)

Forming it

Verb (masu-stem)助け + こそすれ / 増え + こそすれ

How to use it

The same pattern as 「こそすれ」 but attaches to the verb's MASU-STEM; the following clause must be negative.

  • 「Vます形+こそすれ」 = "only does A, and absolutely not B". The following clause MUST negate the opposite.
  • The same pattern as 「N+こそすれ」 (see 「~こそすれ」), differing only in how it attaches.
  • Common pairs: 「助けこそすれ、邪魔はしない」, 「増えこそすれ、減りはしない」.

Examples

  • He would help a friend, never betray one.

  • The burden will only increase; it certainly won’t decrease.

Keep in mind

  • Attaches to the MASU-STEM.
  • The following clause MUST be negative.

Common mistakes

  • Wrong助(たす)けこそすれ、裏切(うらぎ)る。

    I only helped, and yet betrayed him.

    Correct助(たす)けこそすれ、裏切(うらぎ)らない。

    The following clause MUST negate the opposite.

  • Wrong助(たす)けるこそすれ、裏切(うらぎ)らない。

    I only help, and would never betray.

    Correct助(たす)けこそすれ、裏切(うらぎ)らない。

    The verb attaches via the MASU-STEM (助け), not the dictionary form.

Exam tips

  • 「Vます形+こそすれ」 = the same pattern as 「こそすれ」, attaching to the masu-stem; the following clause is negative.

Related patterns

All N1 grammar →