adverb
I have told you before, don't count your chickens
He let his wife walk before, as he knew the road was mined
Before lie the prospects of surrendering or dying
preposition
The king indicated that the page should go before him
The entire valley was spread out before me
Before my departure I have to kiss Annie goodbye
They said they would die before yielding
conjunction
This was a nice place before the day-trippers arrived