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Sentence analysis
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Sentence
Span Details
昨日
yesterdaynoun, adverb
の
possession, attribution, nominalizer, or nominal linkergrammar
ことはなかっ
there is no need to ...; don't have to ...; never happens; there is never a time when-> 事はないexpression, i-adjective
た
past tense or completed actiongrammar
ことにしよう。
decide to; choose to; pretend that; act as if; make a practice of; make it a rule to-> 事にするexpression, suru verb