| some- | somebody / someone / something / somewhere | frases afirmativas, ofertas e pedidos | I saw somebody in the garden. |
| any- | anybody / anyone / anything / anywhere | depois de not e em perguntas | I didn't see anybody. / Did anyone call? |
| no- | nobody / no one / nothing / nowhere | o verbo fica afirmativo: uma só palavra negativa | I saw nothing. |
| every- | everybody / everyone / everything / everywhere | significa “todos, tudo” | Everything is ready. |
| Verbo | everybody | os pronomes indefinidos levam o verbo no singular | Everybody is here. |
| Armadilha | nobody | sujeito negativo → nobody | Nobody came. |