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    気にしなくていいよ (ki ni shinakute ii yo - you don't have to worry)

    Grammar & Usage

    fixed expression
    casual

    How it works

    This phrase combines '気にする' (ki ni suru - to worry/mind) with the negative te-form 'しなくて' (shinakute), followed by 'いい' (ii - good/okay), meaning 'it's okay not to do X'. The final particle 'よ' (yo) adds emphasis and a sense of assurance to the listener.

    Sample sentences

    ちょっと遅れても気にしなくていいよ。

    It's okay even if you're a little late, don't worry about it.

    失敗しても気にしなくていいよ、また頑張ればいいんだから。

    You don't have to worry if you fail; you can just try your best again.

    僕のことは気にしなくていいよ、自分のことを優先して。

    You don't have to worry about me; prioritize yourself.

    Quick facts

    gender:No specific gender connotation; usable by anyone.
    politeness:This is a casual expression, typically used among friends, family, or people in an equal or lower social standing. For a more polite or formal setting, one might use 気になさらないでください (ki ni nasaranaide kudasai) or お気になさらないでください (o-ki ni nasaranaide kudasai).

    Mnemonic

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    Example

    ちょっと遅れても気にしなくていいよ。

    It's okay even if you're a little late, don't worry about it.

    失敗しても気にしなくていいよ、また頑張ればいいんだから。

    You don't have to worry if you fail; you can just try your best again.

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