~とは限らない
〜to wa kagiranai
JLPT N2 Neutral
Formation
Verb-casual + とは限らない, い-Adjective + とは限らない, な-Adjective + だとは限らない, Noun + だとは限らない
Expresses that something is not necessarily true; 'not always', 'not necessarily'.
When to use
"Not always/not necessarily true" - the everyday hedge against a generalization.
Explanation
The ~とは限らない grammar point is used to express that something is not necessarily true or does not always occur. It can be translated as 'not always' or 'not necessarily' in English. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.
Example sentences
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It's not always true that I'm studying.
Itsumo benkyou shite iru to wa kagiranai.
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Expensive products are not necessarily good.
Takai shouhin ga ii to wa kagiranai.
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It's not necessarily true that he is right.
Kare ga tadashii to wa kagiranai.
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It's not necessarily going to rain.
Ame ga furu to wa kagiranai.
Not Necessarily (An Exception Exists)
Corpus examples (60)
クレームがないからといってお客さまが満足しているとは限らないのです。
Just because there aren't any complaints, doesn't necessarily mean your customers are content.
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Money does not always bring happiness.
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Your father's supporters are not limited to his friends.
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In the real world, good doesn't always triumph over evil.
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To make mistakes is not always wrong.
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A big title does not necessarily mean a high position.
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Great men are not always wise.
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Not all the infectious diseases are contagious.
最初に試験を終えた生徒が必ずしも一番良い成績を取るとは限らない。
The student who finishes the examination first does not always get the best grade.
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The same cause does not always give rise to the same effect.
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I'm not always home on Sundays.
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Large houses are not necessarily comfortable to live in.
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I'm not always at home on Sundays.
科学上の発見が、世の中を今までよりも良い場所にするとは限らない。
Scientific discoveries don't always make the world a better place.
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Advances in science don't always benefit humanity.
科学上の発見が、必ずしもより良い世界をもたらしてくれるとは限らない。
Scientific discoveries don't always make the world a better place.
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Pretty flowers do not necessarily smell sweet.
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The handsomest flower is not sweetest.
自国通貨建てで海外に投資することがいつも利益を生むとは限らない。
Investing abroad on your national currency basis will not always be profitable.
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Long-cherished dreams don't always come true.
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A big man is not always robust.
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The race is not to the swift.
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Big men are not always strong.
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You may or may not win.
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Not all policemen are brave.