Regular Verbs
he said
dijo
They were (nice, rude, kind, etc.)
fueron
they slept
durmieron
we were (here)
estuvimos (aquí)
she got dressed
se vistió
y'all did
hicieron or hicisteis
he fell
se cayó
they were able to (managed to)
pudieron
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.