Breakdown of kinou tomodachi to kenkashita ato, meeru de nakanaorishimashita.
Questions & Answers about kinou tomodachi to kenkashita ato, meeru de nakanaorishimashita.
In casual Japanese, time expressions like 昨日, 今日, 明日 often appear without a particle when they just indicate when something happened.
- 昨日 友達とけんかした
= (I) fought with my friend yesterday.
You could add は or に, but it slightly changes the nuance:
- 昨日は友達とけんかした。
Emphasizes “yesterday (as for yesterday), I fought with my friend.” - 昨日に友達とけんかした。
Grammatical, but sounds stiff/unnatural in everyday speech. に is rarely used with 昨日/今日/明日 in casual conversation.
So the version without a particle is the most natural for everyday speech.
