Prepositions               | Grammar Index |
  

The most common Portuguese prepositions are contracted as follows when used with the definite article.
 
Preposition
Definite Article
 
Singular
Plural
to/at ao (m) à (f) aos (m) às (f)
de  of/from do (m) da (f) dos (m) das (f)
em  in/on no (m) na (f) nos (m) nas (f)
por++ by/for pelo (m) pela (f) pelos (m) pelas (f)

++Be careful when using the prepositions para and por.

In English, the indefinite article "a" becomes "an" when it precedes a vowel. In Portuguese, the indefinite articles um (m), and uma (f) must agree with the gender of the accompanying noun. For example, um carro (m) = a car but uma garrafa (f) = a bottle.

While the indefinite article has no plural in English, Portuguese uses the plural forms uns and umas to express the indefinite plural "some." For example, uns carros (m) = some cars and umas garrafas (f) = some bottles.

The prepositions de and em form contractions with the indefinite article as follows:
 
Preposition
Indefinite Article
 
Singular = "a"
Plural = "some"
de  of/from dum (m) duma (f) duns (m) dumas (f)
em  in/on num (m) numa (f) nuns (m) numas (f)

Some other important prepositions include:
 
antes de 
before
após 
after
depois de 
after
até 
until/as far as
desde 
since
através de 
through/across
sob 
under
sobre 
over/on
por cima de 
over/above
ao lado de 
beside

 

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