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研究 けんきゅう開発 かいはつじゃなかった
kenkyūkaihatsujanakatta

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Noun
, 
Da Copula

The past negative form of 研究開発

1. Was not research and development.; Did not do research and development.

Past/Perfective
, 
Negative

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研究開発じゃなかった

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