Write the conjugations you learn on a 3x5 card and memorize them. It is best to carry them with you throughout the day and practice them frequently. Before you begin you will need to learn the Spanish pronouns:
Yo (I), Tu (You singular), El (He), Ella (She), Usted (You, formal), Nosotros/Nosotras (We, masculine and feminine), Vosotros/Vosotras (You plural informal, masculine and feminine), Ellos (They masculine), Ellas (They feminine), Ustedes (You plural, formal).
Memorize the present tense first.
I go = Yo voy
You go = Tu vas
He/She goes = El/Ella va
You (singular formal) go = Usted va
We go = Nosotros(as) vamos
You (plural informal) go = Vosotros(as) vais
They go = Ellos/Ellas van
You (plural formal) go = Ustedes van
Start practicing the preterite (past) tense, next.
I went = Yo fui
You went = Tu fuiste
He/She/You went = El/Ella/Usted fue
We went = Nosotros fuimos
You went = Vosotros fuisteis
They/You went = Ellos/Ellas/Ustedes fueron
Move on to the imperfect indicative (continuous past) tense.
I used to go = Yo iba
You used to go = Tu ibas
He/She/You used to go = El/Ella/Usted iba
We used to go = Nosotros ibamos
You used to go = Vosotros ibais
They/You used to go = Ellos/Ellas/Ustedes iban
Practice the future tense after you have completed the others.
I will go = Yo ire
You will go = Tu iras
He/She/You will go = El/Ella/Usted ira
We will go = Nosotros iremos
You will go = Vosotros ireis
They/You will go = Ellos/Ellas/Ustedes iran