さん にん三様 さんようではありません
sanni nsan'yōdewārimasen

Noun
Desu Copula
na-Adjective
no-Adjective
Negation Auxiliary

The polite negative form of 三人三様

1. It is not the case that everyone is different.; It is not true that there are three people, three ways.

Negative
Polite
Formal Register