それはいけませんね (かん)

それはいけませんね (かん) · sorehaikemasenne (kan) · JLPT N2 · noun

good

それは (that) + いけません (cannot go) = that cannot go on, not good

いけません comes from 行く (go) in the negative potential 行けない, made polite with ません. The ね softens it into a sympathetic 'oh no, that's a shame.'

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