Hi Tosha, nice to meet you! I think this link can help you since they explain it quite well in English. ☛ http://www.studyspanish.com/lessons/persa.htm I sincerely hope this helps. Have a nice day!

Hi, I don't pretend to give an "official explanation" but as native Latin American Spanish speaker I use "a" when I tell somebody about an action that I'll do or is happening to me. Thus, "a" is commonly used when you talk about your own actions. Ex: - Voy a la playa (I'm going to the beach) - Tengo que viajar a Brazil mañana. (I've to travel to Brazil tomorrow.) - Nos vemos el viernes a las 8pm. (We see you on Friday at 8pm.) - Le debo dinero a mi novia. (I owe money to my girlfriend. In all the statements above you use "a" when you talk about something of yourself. Hope this helps!