Capítulo 2: Mis amigos y yo - Notes
2.1 Adjectives (pg. 49-50)
What is an adjective?
Words such as alto, triste, and joven are adjectives (los adjetivos) and they describe nouns.
In Spanish, adjectives often change their form to agree with the noun they describe.
Forms and agreement for adjectives ending in -o
Adjectives ending in -o must agree with both gender and number of the noun.
Gender: masculine = ending -o; feminine = ending -a.
Number: singular vs. plural indicated by -singular forms; plural indicated by -s (for words ending in a vowel) or -es (for words ending in a consonant).
Masculine singular example: el hombre alto
Masculine plural example: los hombres altos
Feminine singular example: la mujer alta
Feminine plural example: las mujeres altas
Rule recap: Masculine -o; Feminine -a; Plural -s as a general rule; if a consonant ends the stem, use -es for plural.
Forms for adjectives ending in -e or consonants
Adjectives that end in -e (e.g., triste) or that end in a consonant (e.g., joven) agree only in number with the noun (gender does not change).
Plural endings for these adjectives: add -s or -es to indicate plural; masculine and feminine forms are the same for these endings.
When adding -es to form the plural, an extra syllable is added, so sometimes an accent mark is needed to preserve stress.
Example given: joven → jóvenes
Quick reference table (agreement rules)
SINGULAR | PLURAL
Masculine: el hombre alto | los hombres altos
Feminine: la mujer alta | las mujeres altas
Rule for choosing between -s and -es
If the word ends in a vowel, add -s.
If the word ends in a consonant, add -es.
This rule mirrors the noun pluralization pattern seen in Estructura 1.2.
Note: When adding -es, stress may shift; use accents as needed (e.g., joven → jóvenes).
Quick takeaway
-o adjectives: must reflect gender and number.
-e or consonant endings: reflect number only; gender remains the same.
2.2 The verbs estar (to be) and ir (to go) (p. 53)
In Para empezar, two new verbs were introduced: estar (to be) and ir (to go).
Conjugation practice: fill in the blanks using the forms from Para empezar.
Conjugation chart (present tense)
SINGULAR
yo: estar = estoy, ir = voy
tú: estar = estás, ir = vas
él/ella, usted: estar = está, ir = va
PLURAL
nosotros/nosotras: estar = estamos, ir = vamos
vosotros/vosotras: estar = estáis, ir = vais
ellos/ellas, ustedes: estar = están, ir = van
Subject pronouns (often omitted in Spanish)
Examples:
Estoy contenta. = I’m happy.
Están aburridos. = They are bored.
Vamos a la fiesta. = We’re going to the party.
¿Vas a clase? = Are you going to class?
Formal vs informal addressing (usted vs tú)
The form used to address someone formally (usted) differs from informal (tú).
Transformation examples (from tú form to usted form):
¿Cómo estás? → ¿Cómo está usted?
¿Vas a la fiesta? → ¿Va usted a la fiesta?
Distinction between ser and estar
Estar expresses temporary states or conditions (not lasting):
Estamos cansados. (We are tired.)
¿Estás enferma? (Are you sick?)
Ser expresses more permanent characteristics or origins:
Soy de Guatemala. (I’m from Guatemala.)
UCLA es una universidad. (UCLA is a university.)
More on ser vs. estar covered in Estructura 4.4 and 5.3.
2.3 The verb gustar (pg. 56)
Me gusta vs. me gustan
Both mean “I like,” but usage depends on what follows:
Me gusta [infinitive or singular noun]; Me gustan [plural noun].
Me gusta and me gustan examples (from Para empezar):
me gusta la música
me gusta la biología
me gustan las películas
me gustan los deportes
me gustan los libros
Singular vs. plural in gustar constructions
When a single item or an infinitive follows gustar, use the singular form: me gusta [singular noun or infinitive].
When multiple items follow gustar, use the plural form: me gustan [plural noun].
Table (conceptual):
me gusta con un sustantivo (singular noun) or con un infinitivo
me gustan con un sustantivo (plural noun)
Te gusta / Te gustan
Te gusta and te gustan function like me gusta/me gustan, with form depending on singular/plural subject.
Example prompts: ¿Te gustan los deportes? ¿Te gusta la historia?
Le gusta / le gustan
Le gusta and le gustan mean he/she likes or you (formal) like.
To clarify who is being talked about, you may use a + name or a pronoun (e.g., a usted).
Example prompts and answers:
¿A usted le gustan las novelas gráficas?
A Carolina no le gusta el chocolate.
2.4 Infinitives with gustar and ir (p. 58-59) (1-3)
Infinitivo (infinitive) after gustar
In Para empezar, me gusta is followed by the infinitive (el infinitivo), the unconjugated form of the verb.
Infinitives in Spanish end in one of these: -ar,
-er,
-ir.
Examples of infinitive endings (types):
-ar verbs: estar, hablar, usar
-er verbs: hacer, tener
-ir verbs: dormir
These three endings correspond to the three verb groups in Capítulo 3.
Gustar with infinitives (singular)
Gustar is always in the singular form when used with one or more infinitives.
Examples:
Me gusta ir al cine. (I like to go to the movies.)
A José le gusta escuchar música y bailar. (José likes to listen to music and dance.)
Infinitives with ir a (to express a future event)
Infinitives are used after ir a to express a future action:
Voy a estudiar. (I am going to study.)
Van a nadar. (They are going to swim.)
¿Vas a correr? (Are you going to run?)
Ana va a usar la computadora. (Ana is going to use the computer.)
Summary note on usage
me gusta + infinitive = I like to + verb
ir a + infinitive = going to do + verb (future)