Use of adjectives with verbs other than "ser" is confusing me
Cercano & lejano are adjectives while cerca & lejos are adverbs. I was under the impression that this is why you couldn't use cercano & lejano with "estar" i.e.
Es un pueblo cercano/el pueblo está cerca
But obviously it's not that simple because we use adjectives with estar all the time e.g:
Es una casa limpia/la casa está limpia
This has got me wondering what the difference even is between an adjective and an adverb (or to be more exact, why we can't just say "el pueblo está cercano")
Similarly, there's a song called Clandestino by Manu Chao and in a couple of lyrics it looks like he's using ir + adjective (rather than ir + adverb):
> Solo voy con mi pena/sola va mi condena
> Mi vida va prohibida/dice la autoridad
Is it not the case that adjectives describe what something is while adverbs describe other verbs? If so, how come we see sentences like:
Sola va mi condena
Ella camina sola
"Sola" has to be an adjective here since adverbs don't change for gender. Since they're describing the actions ir & caminar, how come these sentences don't use the invariable adverb "solo"?