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Sentence

約やく束そくしたことを忘わすれないでください。

Span Details

約やく束そく

promise; agreement; one's word; contract

noun, suru verb

light/support verb with a noun or noun-like phrase

-> するgrammar

た

past tense or completed action

grammar

thing; matter; the fact that; doing

noun, noun suffix

forget; leave behind

-> 忘れるichidan verb

without doing; do not

ください。