How do you conjugate verbs in spanish?

Well, there are 3 types of verbs - those ending in ar, er, and ir
For the present tense, they are conjugated like this

An ar verb - bailar (to dance)
Remove the -ar- and add the ending
the conjugations will be 

I - bailo
You- bailas
He/she- baila
We- bailamos
you pl- bailáis
they- bailan

Then an -er verb - comer (to eat)
Again, remove the er and add ending
I- como
You- comes
he/she- come
we- comemos
you pl - coméis
they - comen

Ir verbs - vivir (to live)
Remove -ir and add ending
I- vivo
you -vives
he/she - vive
we- vivimos
you pl. -vivís
they- viven

These are for the present tense only, hope this helps!

Tú escribes mucho en la clase de ingles.