1) How to use the verb "ir" and "ir + a +verb":
Ir + a + verb = to be going to something
Ex: Yo voy a estudiar esta noche. = I am going to study tonight.
Ir +_ a + verb + a + place
Ex: Yo voy a ir a la escuela. = I am going to go to school.
Ir + a + place = + to go to a place
Ex: Yo voy a la escuela. = I am going to school
2) Possessive Adjectives
They go before a noun, show possession, and agree with the thing owned, not with who owns it:
mi(mis) = my
tu(tus) = your
su(sus) = his, her, their, your (for Usted/Ustedes)
nuestro(s)/nuestra(s) = our
vuestro(s)/vuestra(s) = your (for Vosotros)