Being able to tell someone you're going somewhere, or that you will do something is an incredibly useful part of conversation, and strangely is ignored in many entry level Spanish courses that I've looked at.
Just this morning I had to email a colleague and tell him that I'll send more information next week, and like in English, the verb ir in the future tense is similar to saying shall or will.
Let me give a couple of examples, "voy a supermercado" translated as I'm going to the supermarket. Or "yo iré enviar" translated as I will [go] send. Note in the second example we don't use go in the English example, but in Spanish the future tense of the verb is used.
The verb Ir is irregular, and can take a lot of getting used to, not least because all of the tenses look so completely different from each other. Eventually it starts to make sense, so persevere.
Here is a breakdown of the verb ir;
Present tense
Yo voy - I go
Tu vas - you go
el/ella va - he/she goes
nosotros vamos - we go
vosotros vais - you (pl) go
ellos van - they go
Simple past tense
Yo fui - I went
Tu fuiste - you went
el/ella fue - he/she went
nosotros fuimos - we went
vosotros fuisteis - you (pl) went
ells fueron - they went
Imperfect past tense
Yo iba - I used to go
tu ibas - you used to go
el/ella iba - he/she used to go
nosotros íbamos - we used to go
vosotros ibais - you (pl) used to go
ellos iban - they used to go
Future tense
Yo iré - I will go
tu irás - you will go
el/ella irá - he/she will go
nosotros iremos - we will go
vosotros iréis - you (pl) will go
ellos irán - they will go


