WOW Vale... what a Stellar answer! Here I thought you were just asking for typical Spanish language challenges and I wasn't even expecting a response... I'll check out the links. As per your funny fact... we say: you may find useful, useful for and useful to... so you are correct either way. There are times when one is better than another, but in this case, all are acceptable.

Hi Teacher Lori! When I first saw your reply I thought: "this is an easy one, I can explain it myself" but, while I was trying to order my ideas, I realized that this is a little bit harder than I thought. Therefore, I searched on the internet and I found a Spanish professor and he has two videos explaining this topic and I'd like to share them with you. Besides, on his website he has some exercises that you may find useful (funny fact: I wasn't sure if I had to type: '... that may be useful for you (or to you)'). In the meantime, we can say that 'por' is used to refer to a cause or motive while 'para' is used to refer to a recipient or a purpose/objective (what is something for?). Here are some examples: Por: Ha sido expulsado por copiar. Para: ¿Para qué sirve está llave? Sirve para abrir la caja Hacer ejercicio es bueno para la salud. Me mudé a Inglaterra para mejorar mi inglés. Below you will find the links to the professor's channel I told you before in case you are interested: Borja Odriozola youtube channel: https://www.youtube.com/watch?v=8Nhzyzslyxw His webpage: https://firsthandspanish.com/diferencia-entre-por-y-para/ Lastly, I'd like to share with you a picture that I couldn't load in the comments: https://www.spanishskype.net/fichas-de-gramatica/preposiciones-por-o-para.html I hope I've been able to help you!

can you help in english

Subjunctive imperfect / conditional forms 2 & 3

por vs para