In this lesson, we’ll have a look at indefinite determiners. Indefinite determiners (determinantes indefinidos) are words that express an indefinite idea of quality about the noun they’re defining. In Portuguese, indefinite determiners always agree in gender and number with the noun they’re defining.
Outro, Outra, Outros, Outras
Outro (masculine) and Outra (feminine) are the singular form equivalents to “other” or “another” in English. Examples:
Dá-me outro destes bolos, por favor. Give me another one of these cakes, please.
Temos de pôr aqui outra mesa. We need to place another table here.
Outros (masculine) and outras (feminine) are the plural forms of outro and outra. Examples:
Aqueles outros senhores são os nossos convidados. Those other gentlemen are our guests.
Estas estão molhadas, dá-me as outras. These are wet, give me the others.
Certo, Certa, Certos, Certas
Certo (masculine) and certa (feminine) are the singular form equivalents to the English “certain”, or “one”, in the sense of date, object or person that isn’t clearly defined. Examples:
Certo dia, Pedro Coelho partiu em viagem. One day, Peter Rabbit went on a journey.
Certa manhã, recebi uma encomenda. One morning, I received a parcel.
Certos (masculine) and certas (feminine) are the plural forms of certo and certa, and they mean “some” or “certain”, indefinite characteristics of the noun they’re defining. Examples:
O paciente tem certos sintomas que parecem ser de gripe. The patient shows certain symptoms which seem to suggest a flu.
Certas pessoas não se sabem comportar! Some people don’t know how to behave!