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研究 けんきゅう開発 かいはつではありませんでした
kenkyūkaihatsudewārimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 研究開発

1. Was not research and development.

Past/Perfective
, 
Negative
, 
Polite
, 
Formal Register

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研究開発ではありませんでした

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