Por y

Para

Para

Direction or destination (toward)Voy para tu casa

Intended recipient(for someone or something)

Este regalo es para Lorena

This present is for Lorena

Purpose (in order to)

Yo estaba estudiando para tomar mi examen de matemáticas

I was studying in order to take my exam.

A specific point in time

You have to tell me by Friday.

Tienes que decirme para el viernes

to... (ready to)

We are ready to watch the movie

Estamos listos para mirar la película

Por

In exchange for

I paid 50 dollars for an ipod

Pagué 50 dólares por un ipod

The object of an errand

Please go for the book at the library

Por favor ve por el libro a la biblioteca

In place of (as a substitute for) (on behalf of)

I accepted the award on behalf of Luisa

Acepté el premio por ella.

I do the dishes for you

Lavo los platos por ti.

Duration or length of time

I’m going to be in México for a week.

Voy a estar en México por una semana

Unit or measure/per

Ten pesos per kilo

Cincuenta pesos por un kilo de pescado

Through, by, by means ofMode of transportationcommunication

She Came in Through the Bathroom Window

Entró por la ventana del baño

Cause. motive

We did it for him

Lo hicimos por él

Fin