however one slices it

The concert was short. However, it was very good.

I was looking at a dog. However, when I looked again, it had turned into a cat.

ruЯ смотрел на собаку, однако, когда я посмотрел снова, она превратилась в кошку. — corvard

deIch betrachtete einen Hund; als ich aber erneut hinsah, war eine Katze draus geworden. — Pfirsichbaeumchen

However, it is not that important.

Unfortunately, however, it won't be easy.

By then, however, it was too late.