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Questions & Answers about Algumas casas são pequenas.
Why is Algumas used here, and what does it mean in English?
Algumas means "some" and is the feminine plural form of algum. Since casas (houses) is a feminine plural noun, we need to use the matching feminine plural adjective algumas.
Why is the noun casas in the plural form?
The noun casa (house) is put in the plural casas to match the idea that we’re talking about more than one house and also to agree with algumas.
Why does the sentence use são instead of estão?
In Portuguese, são (from the verb ser) is used for more permanent or characteristic descriptions, such as size. Estão (from the verb estar) often suggests a temporary or changeable state. Here, the sentence emphasizes a characteristic (being small), so são is appropriate.
Why do we say pequenas instead of pequenos?
The adjective must match the gender and number of the noun. Since casas is feminine plural, the adjective pequeno (small) becomes pequenas to agree in gender (feminine) and number (plural).