for the class.
Translation: ¿Porque estas tarde para la clase?
for the dinner
cervezas para todos!
it means : we are made for each other
For Spanish class.
Clase consultiva para estudiante.
para tu for you
In Spanish "the books for our class" would translate to "los libros para nuestra clase".
The popular Spanish phrase "eres todo para mi" means "you are everything to me". There are other variations as well. Another variation is "you mean everything to me".
alambre para agua
For your sake in Spanish is "para su motivo." I really think "por su bien" is a better translation, "para su motivo" sounds a little weird in spanish.
You have your book for the Spanish class. Depending on context, this ca also be a question, "Do you have..."