三十 さんじゅう にち蕎麦 そばではありませんでした
sanjūnichi sobadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 三十日蕎麦

1. Was not soba on the thirtieth.; Wasn't soba on the 30th.

Past/Perfective
Negative
Polite
Formal Register