Siempre is the opposite of nunca
estoy is the right conjugation
estan is the right conjugation
1. Conozco, sé
2. Sabes
3. Sé
4. Conoces
5. Conozco, sé
Can you specify what you mean?
In translation, this means it is a mystery why the natives of Costa Rica carved drawings on stone spheres. So I really have no clue what you are asking