✨ Basic Meaning
🎯 Primary Function
📋 Grammar Structure
🎭 Usage Contexts
Can be used in somewhat formal contexts when expressing a nuanced opinion or acknowledging a possibility, but avoid in highly formal writing or speeches.
Very commonly used in informal conversations.
Found in written Japanese, especially in dialogue, essays, or opinion pieces where nuanced expression is needed.
Frequently used in spoken Japanese to provide qualified answers or express hesitation/reluctance.
💡 Common Applications
📌 Important Points
⚠️ Common Mistakes
🏛️ Cultural Context
🔍 Subtle Differences
📝 Conjugation Notes
Attach ことは ない/ありません to the plain negative form: – Verbs: 読む (to read) -> 読まないことはない (It’s not that I don’t read / I do read, but…) – い-adjectives: 忙しい (busy) -> 忙しくないことはない (It’s not that I’m not busy / I am busy, but…) – な-adjectives: 簡単 (easy) -> 簡単じゃないことはない (It’s not that it’s not easy / It is easy, but…) – Nouns: 学生 (student) -> 学生じゃないことはない (It’s not that I’m not a student / I am a student, but…) (な-adjective/Noun forms with じゃないことはない are less common than verb/い-adj forms and sometimes ではないことはない is used in slightly more formal contexts.)
🔊 Pronunciation Tips
Standard pronunciation. Pay attention to the slight pause or emphasis on ことは which highlights the element being affirmed despite negation.
🧠 Memory Tips
Think of it as a double negative: “not [not possible]” = “possible”. Imagine a fence (こと) between the two “not”s, making the possibility sneak through.

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