May not A; must not A

ここでごみを捨ててはいけない!
You must not throw away trash here!
17点
試食品を全部食べてはいけない。
You mustn't eat all the sample foods.
14点
お父さんに逆らってはいけない。
Don't go against your father.
20点
あんな人達と交際してはいけない。
Don't associate with such people.
11点
あの男を信用してはいけない。
You shouldn't trust the man.
7点
二度と私に嘘をついてはいけない。
Never tell me a lie again.
4点
あんな男に負けてはいけない。
Don't go down before such a man.
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Getting the sentences
Construction
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Basic Examples:
飲んではいけない (must not drink)
Related Expressions
Where this grammar is found
Discussion about this grammar
Years Studied: 1
Studying: JLPT 4級
Level: 1,
好 : 28
Studying: JLPT 4級
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14 years ago (Edited 14 years ago.)

Site admin
Level: 209, 好 : 9,449
Level: 209, 好 : 9,449
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14 years ago
Years Studied: 1
Studying: JLPT 4級
Level: 1,
好 : 28
Studying: JLPT 4級
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14 years ago (Edited 14 years ago.)
Level: 1,
好 : 7
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5 years ago

Years Studied: 13
Level: 1,
好 : 957
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1点
5 years ago