光学こうがく顕微けんびきょうじゃありませんでした
kōgakukembi kyōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 光学顕微鏡

1. Was not an optical microscope.; It wasn't an optical microscope.

Past/Perfective
Negative
Polite
Terminal Form