Lingaku
Sign In
Explore
Learn
English
Loading
Lingaku
Japanese
Decks
(Japanese)
Kanji List
(Japanese)
Grammar List
(Japanese)
Leaderboard
(Japanese)
Help
(Japanese)
Acknowledgements
(Japanese)
Chinese
Decks
(Chinese)
Hanzi List
(Chinese)
Grammar List
(Chinese)
Leaderboard
(Chinese)
Help
(Chinese)
Acknowledgements
(Chinese)
Italian
Decks
(Italian)
Grammar List
(Italian)
Leaderboard
(Italian)
Help
(Italian)
Acknowledgements
(Italian)
English
Decks
(English)
Grammar List
(English)
Leaderboard
(English)
Help
(English)
Acknowledgements
(English)
About
Pricing
Blog
Contact Us
English
© 2026, lingaku.com. Read our
Terms of Service
and
Privacy Policy
. Manage
Cookie Preferences
.
mustn't
verb
C1
/ˈmʌs.n̩t/
Must not (negative auxiliary); used to indicate that something is forbidden or, in a tag question, that something is not necessary.
uncommon
Example sentences
193 results
You mustn't depend on others for help.
Tatoeba
You mustn't enter this room without permission.
Tatoeba
Show all 193 example sentences
LingakuLingaku