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とは限らない
N3 GRAMMAR ⏱ 0s study 📖 0 today
towa kagiranai
not necessarily so; is not always true
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🃏 Flashcard
とは限らない
towa kagiranai
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not necessarily so; is not always true
N3
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📊 Pattern Stats
JLPT Level N3
Intermediate · Expressing nuance & contrast
Reading towa kagiranai
Post ID 50965
Patterns today 0
0 / 10 daily goal
📝 Usage Notes

not necessarily so; is not always true

📖 How to use it

Says that something is not always true, despite appearances or common assumptions.

Attaches to Attach to the plain form of a verb or adjective (present or past), or to a noun + だ (dropped before とは). For な-adjectives, use the stem + だ or な (but usually the stem + だ is dropped).

This pattern expresses that a general statement or expectation does not always hold. It is often used to counter a stereotype or a common belief, meaning 'not necessarily', 'not always'. For example, if someone thinks expensive things are good, you can say 高いものがいいとは限らない (Expensive things are not necessarily good). Note that it attaches to the end of a clause, and the clause is in plain form. For nouns and な-adjectives, you often see the だ omitted, giving a more direct connection.

金持ちが幸せとは限らない。
Kanemochi ga shiawase towa kagiranai.
Rich people are not necessarily happy.
有名な先生の授業が分かりやすいとは限らない。
Yuumei na sensei no jugyou ga wakariyasui towa kagiranai.
A famous teacher's class is not always easy to understand.
頑張れば成功するとは限らない。
Ganbareba seikou suru towa kagiranai.
Working hard doesn't always lead to success.
Not とはかぎらない vs. わけではない Both mean 'not necessarily', but とは限らない emphasizes that the statement is not always true, while わけではない emphasizes that it is not the whole reason or not completely so. Also, とは限らない often follows a general assumption or stereotype, while わけではない can be used more broadly.
Register Neutral and used in both spoken and written Japanese, but slightly formal in nuance; common in essays and discussions.
🎯 Quick Quiz
What does this grammar pattern mean or do?
とは限らない
📚 How to Master This Pattern
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Say It Aloud
Press Hear it and repeat とは限らない three times. Feel the rhythm — grammar patterns have a natural flow.
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Write Two Sentences
Compose two original sentences using とは限らない. One about yourself, one about something you see right now.
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Spaced Review
Save this pattern and revisit at 10 min, 1 day, 3 days. Production (writing) beats recognition for grammar.
❓ Frequently Asked Questions
What does the grammar pattern とは限らない mean? ▼
Not necessarily so; is not always true
What JLPT level is とは限らない? ▼
Nihoner currently groups this pattern under JLPT N3 — Intermediate · Expressing nuance & contrast. Use the level label as study guidance rather than a prediction of what will appear on an exam.
How do you use とは限らない in a sentence? ▼
Attach とは限らない (towa kagiranai) to the appropriate verb or noun form as described in the usage notes. Then try writing two original sentences — one about yourself and one about something around you.
Is とは限らない formal or casual Japanese? ▼
とは限らない is used in both casual and polite contexts. It appears frequently in everyday conversation, textbooks, and simple written materials.
How can I remember とは限らない long-term? ▼
Use the flashcard on this page for active recall — see the pattern, reconstruct the usage from memory, then flip. Follow with the 4-choice quiz to distinguish it from similar patterns. Review later the same day and again over the following days. Writing original sentences can help you practise using the pattern in context.