anybody

used to refer to any person, especially when you do not know who the person is or which particular person you mean

cualquiera, alguien

• anybody + verb

Collocations anybody can do it · anybody would know that

• Anybody could have seen the accident.

  Cualquiera pudo haber visto el accidente.

used in negative sentences to mean 'no person'

nadie, ninguna persona

• not + anybody

Collocations nobody knows · there's nobody here

• There isn't anybody in the office.

  No hay nadie en la oficina.