Tú is commonly used to address close friends and children while usted is for formal conversations and parents.
The plural forms are either masculine or feminine, except for ustedes. Vosotros and its corresponding verb forms are not used in Latin America. Ustedes is used in its place.
Yo camino por cuarenta minutos.
I walk for forty minutes.
¿Comes tú el desayuno en la cama?
Do you eat breakfast in bed?
Sebastian sale de la escuela temprano.
Sebastian leaves for school early.
Nosotras no estudiamos para el examen.
We don't study for the exam.
Ellos saben nadar muy bien.
They can swim very well.
Le and lo are masculine while la is feminine.
Los is masculine and las is feminine.
The direct object pronouns precede the verb and follow the negative. They can refer to people or objects and indicate the gender and number of the object.
Anoche lo vi otra vez.
I saw it again last night.
Las conozco desde hace mucho tiempo.
I know them from a long time ago.
Tú lo traes.
You bring it.
Ellos lo dieron como recompensa.
They gave it as a reward.
No la veía desde la última fiesta.
I didn't see her since the last party.
Él le da a todos.
He gives it to everyone.
The demonstrative pronouns can be used in place of the demonstrative adjective and its noun. The pronouns have written accents while the adjectives do not. They are commonly used when making comparisons.
éste, ésta
this one here
ése, ésa
that one there
aquél, aquélla
that one over there
ésos, ésas
those there
aquéllos, aquéllas
those over there
Examples
Yo no quiero éste.
I don't want this one.
Mi pastel de zanahoria es mucho más rico que ése.
My carrot cake is much more delicious than that one.
El carro de mi mamá es más bonito que aquél.
My mother's car is more beautiful than that one.
Compra estás uvas. Ésas están viejas.
Buy these grapes. Those are old.
Las playas de España son mejores que ésas..
Spain's beaches are better than those.
Mis zapatos favoritos son aquéllos.
My favorite shoes are those one over there.