1. La Gramática

2. Reflexive Verbs
Some words in the Spanish language attached a se at the end of the infinitive. Se is the reflexive pronoun of the sentence and the verbs is called the reflexive noun. This reflects the action back to the subject of the sentence.

3. Peinarse Yo me cepillo Tú te cepillas Ud. Él se cepilla Ella
Nosotros/as nos cepillamos
Vosotros/as os cepilláis
Uds.
Ellos se cepillan
Ellas

4. Preterite of reflexive verbs

5. Demonstrative adjectives
Forming the preterite reflexive tense has only one exception to it that differs from the same patterns used to form the preterite tense. This exception is adding a reflexive pronoun to the sentence.
To tell where something or someone is located.
este ese aquel
esta esa aquella
estos esos aquellos
estas esas aquellas

6. Demonstrative pronouns
The adjectives become demonstrative pronouns when you take the place of the noun and add accent marks.

7. Los pronombres demostrativos
singluar
Masculino Femenino
éste ésta
ése ésa
aquél aquélla
plural
Masculino Femenino
éstos éstos
ésos ésas
aquéllos aquéllas