Mi hermana es muy alta y delgada (My sister is very tall and slim). The adjectives alta and delgada both agree with the feminine singular noun hermana. Mis amigos espaoles son generosos y acogedores (My Spanish friends are generous and welcoming).
Gender agreement with adjectives In Spanish, adjectives must match the noun gender and number, so if the noun is feminine, the article and adjective must be feminine as well. If the noun is plural, the adjective and article will also be plural.
Subject-verb agreement is a very prominent feature of Spanish grammar. When conjugated, Spanish verb forms, by their spelling and sound, show agreement with their subjects to a far greater extent than do their English counterparts. Subject and verb agree in person (1st, 2nd, or 3rd) and number (singular or plural).
The agreement of adjectives is a Spanish rule that states that the adjective must agree in number and gender with the noun it describes. In this case, adjectives are modified to female and masculine forms and are changed to plural or singular to match the noun it describes.
Number Adjective Agreement Unlike in the English language, Spanish adjectives are either singular or plural. For adjectives to agree with plural nouns, they must also be changed to their plural form. To do this, either an -s or -es is typically added to the end of the adjective.
Adjective agreement, then, is the process in which an adjective matches the gender and number of the noun it describes. For example: el caballo blanco(The white horse), la manzana deliciosa(the delicious apple).
The adjective clause modifies (describes) something (the “antecedent”) vague or nonexistent. Let's take another example: No hay nadie que me pueda ayudar. The adjective clause is everything following que: que me pueda ayudar. The antecedent is the “something” that is being modified: Nadie.
In Spanish, we have a rule that called “agreement” that in general terms consists on the words around the noun to “agree” with the noun in gender and number. That means that, for example, if I say that a car is yellow, the word “yellow” has to have the same gender and number than “car”.
Agreement in gender refers to the grammatical rule that pronouns must match the gender of their antecedents. This means that if a noun is masculine, the pronoun used to refer to it should also be masculine, and similarly for feminine nouns.