For - 'Por' & 'Para'
Spanish: AQA A Level, topic 17.3.1
Para - For
There are two words that mean 'for' in Spanish, but they each have different uses. Here are the uses of 'para':

Showing purpose or use
- When used for this reason 'para' can also mean in order to.
- E.g. Trabajo para ganar dinero.
- I work in order to earn money.
- E.g. Este sistema es utilizado para organizar la información.
- This system is used for organising the information.

Showing who something is for
- E.g. Compré este bocadillo para ti.
- I bought this sandwich for you.
- E.g. Era un regalo para mí mismo.
- It was a gift for myself.

Movement or direction
- E.g. El avión va para Madrid.
- The plane is going to Madrid.
- E.g. ¿Para dónde vas?
- Where are you going?

For infinitives and opinion
- E.g. Para concluir.
- In order to conclude.
- E.g. Para ellos.
- For them (in their opinion).
For - 'Por'
'Por' is the other way to say 'for' in Spanish. 'Por' has different uses to 'para'.

Motivation
- 'Por' is used to show the motivation or reasons for doing something.
- Jesus murió por nosotros.
- Jesus died for us.
- Me gusta el carne por su sabor.
- I like meat for its taste.

For travel and how you contact someone
- When used for this purpose, 'por' can also means through or by.
- Seguimos por el camino actual.
- We continued on the current path.
- Contacte con nosotros por téléfono o correo electrónico.
- Contact us by phone or email.

Exchanging something for something else
- Te doy treinta libras por la falda
- I will give you 30 pounds for the skirt.
- ¿Quieres cambiar tu bolígrafo por mi chicle?.
- Do you want to trade your pen for my chewing gum?

To say how long something happens for
- Tiene que correr por dos horas.
- He has to run for two hours.
- Durmieron por diez horas.
- They slept for ten hours.

For speed
- When you are talking about kilometres per hour you need to use 'por'.
- 60 kilómetros por hora.
- 60 kilometres per hour.
Test yourself on For - 'Por' & 'Para'
Complete the translation with the right preposition: ¿Quieres cambiar tu chocolate ____ mi chicle?