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Sentence analysis

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Sentence

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Sentence

うっかり約やく束そくを忘わすれてしまった。

Span Details

carelessly; inadvertently; absent-mindedly

約やく束そく

appointment; engagement; date

noun, suru verb

を

object marker

grammar

forget; leave behind

-> 忘れるichidan verb

completion or regret

-> てしまうgrammar

past tense or completed action