Regular Verbs
Irregular Verbs
Stem-Changers
Plate Verbs
Yo Spelling Changes
100
I ran
Corrí
100
You went
fuiste or fue
100
he asked for
pidió
100
I walked
anduve
100
I played
jugué
200
He lived
vivió
200

They were (description)

fueron

200

they said 

dijeron

200
We were (estar)
estuvimos
200
I searched for
busqué
300
They spoke
hablaron
300
I gave
di
300

They gave

dieron

300
they came
vinieron
300
What are the three types of verbs that have spelling changes in the yo form?
-gar, -car, -zar
400
You wrote
escribiste or escribió
400
We saw
vimos
400

she wanted

quiso

400
I brought
traje
400
I ate lunch
almorcé
500

Y'all ate

Comieron or Comeisteis

500

y'all saw

vieron or visteis

500

You brought

trajiste

500
they did
hicieron
500
Why is there a spelling change in the yo form of these verbs?
In order for the conjugated form to sound like the infinitive, the spelling must change slightly.