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有効 ゆうこう利用 りようじゃありませんでした
yūkōriyōjārimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 有効利用

1. Was not effectively used.; Was not utilized effectively.

Past/Perfective
, 
Negative
, 
Polite
, 
Terminal Form

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有効利用じゃありませんでした

有効利用じゃありませんでした【ゆうこうりようじゃありませんでした】 Activity

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