Por Vs. Para

Front 1

because of; for
"Because of not studying, you did not do so well."

Back 1

Por
"Por no haber estudiado, no saliste bien."

Front 2

duration of time
"I watched television for two hours"

Back 2

Por
"Vi la television por dos horas."

Front 3

on behalf of/for the sake of
"He asked me to do the homework for him"

Back 3

Por
"Me pidio que hiciera la tarea por el."

Front 4

in exchange for; instead of
"I am going to offer him five dollars for that CD."

Back 4

Por
"Le voy a ofrecer conco dolares por ese disco compacto."

Front 5

through; along
"We walk along the riverbank"

Back 5

por
"Caminamos por la orilla del rio."

Front 6

in order to
"We went to the store to buy tortillas."

Back 6

Para
"Fuimos a la tienda para comprar tortillas."

Front 7

to indicate destination
"Why don't we leave for school now?"

Back 7

para
"Por que no salimos para la escuela ahora?"

Front 8

to indicate a point of time in the future
"I have to finish the report by tomorrow."

Back 8

para
"tengo que terminar el informe para manana."

Front 9

to express a comparison or constrast
"for such a young person, he complains too much."

Back 9

para
"Para una persona tan jove, se queja demasiado."

Front 10

in the expression estar+_______ (to be about to do something)
"I was about to leave when the phone rang."

Back 10

Estaba para salir cuando sono el telefono.

Front 11

to indicate means
"he sent me the package by air mail"

Back 11

por
"me mando el paquete por correo aereo."

Front 12

to indicate the agent in the passive voice
"the building was constructed by that company."

Back 12

por
"el edificio due construido por esa compania."

Front 13

with certain verbs (ir, enviar, mandar, regresar, venir, volver) meaning for/in search of
"we are going to the supermarket for milk."

Back 13

por
"vamos al supermercado por leche."

Front 14

in the expression estar+______ (to be in favor of)
"I was always in favor of that law."

Back 14

estar+por
"siempre estuve por esa ley."

Front 15

to indicate purpose, intention, or use
"this bag is for the books."

Back 15

para
"esta bolsa es para los libros."