Questions: Plural: Write the plural form of word and article. un cuaderno

The plural form of "un cuaderno" is "unos cuadernos."

In Spanish, to form the plural of a noun and its article, you generally follow these rules:

1. For nouns ending in a vowel, add an "s" to the end of the noun.
2. For nouns ending in a consonant, add "es" to the end of the noun.
3. The article "un" (a/an) changes to "unos" (some) in the plural form.

So, "un cuaderno" (a notebook) becomes "unos cuadernos" (some notebooks) in the plural form.