¿cuándo utilizar 'por' y cuándo usar 'para'? when to use 'por' and when to use 'para'? :)

Hello Lauren, nice to meet you!

The best way to differentiate between por and para is to know the specific ways in which they should be used.

The preposition por shows the following:

• Motion/place: Caminan por las calles. (They walk through the streets.)

• Means/manner: Lo envío por correo aéreo. (I’m sending it by air-mail.)

• In exchange for/substitution: Voy a hacerlo por tí. (I’m going to do it for you.)

• Duration of an action: Trabajo por una hora. (I’m working for an hour.)

• Indefinite time period: Duerme por la tarde. (He sleeps in the afternoon.)

• On behalf of: La firmo por Ud. (I am signing it on your behalf.)

• Per: Me pagan por día. (They pay me per day.)

The preposition para shows the following:

• Destination/place: Salimos para Madrid. (We are leaving for Madrid.)

• Destination/person: Esto es para Ud. (This is for you.)

• A future time limit: Es para mañana. (It’s for tomorrow.)

• Purpose/goal: Nado para divertirme. (I swim to have fun.)

• Use/function: Es un cepillo para el pelo. (It’s a hair brush.)

• Comparisons: Para su edad, lee bien. (For her age, she reads well.)

• Opinion: Para mí es demasiado crudo. (For me it’s too rare.)

I sincerely hope this helps, Lauren. All the best!

Nice to meet you too, ahhhh this helps a lot! thank you so much!! :)

Fernando, gracias por su respuesta. Aprendí mucho. :)

Hi my name is Henry l like exchange language with you,, Si se puede por skype mejor este es el mío valdi.t1

Ti no lleva tilde Fernado , es monosílabico ;) . Corrige bien , por favor :) 

Fernando is right :D 

POR is used like a reason or a cause is something happened.

Also to know around where is a action being doing

El esta triste POR tu culpa, he is sad because of you.

 El esta trabajando por tu casa, he is working near from your home

Ella esta corriendo por la casa, sheais running through the house

PARA is used to know the person or object that the action is doing for. Or to know the reason why the action is doing

Hola Lauren :)

Nice to meet you! I am Leonardo.

Are you interested in having a Spanish-English language exchange with me? If so I would be glad to teach you my language and would be glad to receive your help.

Greetings! 

Te paso un par de vídeos que hice hace poco sobre las preposiciones por y para.  Espero que te guste y te sean útil.

https://www.youtube.com/watch?v=80xD5vjRNPs

https://www.youtube.com/watch?v=JnsgKclLZ4s

hi, nice to meet you , can we be friend and teach each other, my skype is aaron00888