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失効 しっこうではありませんでした
shikkōdewa arimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 失効

1. Was not invalidated.; Was not expired.; Was not rendered ineffective.

Past/Perfective
, 
Negative
, 
Polite
, 
Formal Register

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失効ではありませんでした

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