However, when the nouns are of mixed gender, the adjective is masculine
and plural:
El sofá y la cama están sucios. The sofa and the bed are dirty.
Singular and plural of adjectives
Most adjectives have distinct singular and plural forms and agree in
number with their accompanying noun, or with the subject of the verb (if
the verb is ser, estar, pareceretc.).
The plurals are generally formed as for nouns, by adding an -sto those
ending in a vowel, and -esto those ending in a consonant. See 2.1.
Adjectives of colour
When nouns are used as adjectives of colour, such as those listed in 6.1.4.2,
they are usually not only invariable for gender but also for number
(although in speech and in Latin America this is not always the case):
unos guantes rosa some pink gloves
rayos ultravioleta ultraviolet rays
Similarly, compound colour adjectives are invariable for number:
blusas azul marino navy blue blouses
ojos verde claro light green eyes
Special cases of number agreement
When two or more nouns are considered to be a singleitem, the adjective
qualifying them may be singular and in that case it agrees with the nearest
noun:
Estudia lengua y cultura francesa. He studies French
language and culture.
el diseño y la moda italiana Italian design and fashion
6.2.2.1
6.2.2
6.2.1
6.2
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2 3 4 5 6 7 8 9
1011
1
12111
3 4 5 6 7 8 9
20111
1 2 3 4 5 6 7 8 9
30111
1 2 3 4 5 6 7 8 9
40
41111
Singular and
plural of
adjectives