Grammar · です and negatives
です, the polite to be
[Noun / な-adjective] です
です is how you politely say is, am or are. It does not conjugate for person or number, so one form covers everything.
The mistake to avoid
です is pronounced closer to 'des'. The u is devoiced and almost disappears.
Examples
田中さんです。
たなかさんです。
It's Mr Tanaka.
元気です。
げんきです。
I'm well.