However can be an adverb of degree and conjuction.
As an adverb of degree, however precedes its adjective/adverb and looks like this:
- You couldn 't earn much, however hard you worked.
As a conjunction, however usually means "but". It can precede or follow its clause or come after the first word or phrase.
- I'll offer it to Tom. However, he may not want it or He may not want it, however or Tom, however, may not want it or however, he doesn't want it. . .
But when two contrasting statements are mentioned, however can mean "but/nevertheless/all the same"
They hadn't trained hard, but/however/nevertheless/all the same they won or they won, however/nevertheless/all the same.