In Spanish, verb endings are very important as they show who is doing something. Most of them follow regular patterns.
The ending for yo, I, is -o:
trabajar: trabajo
comer: como
vivir: vivo
Trabajo en Patios Ltd. I work for Patios Ltd.
Como a las dos. I eat at 2:00.
Vivo en el centro. I live in the centre.
The ending for él, ella and usted, he, she, you formal, is -a or -e.
The infinitive, or dictionary form, tells you what the pattern will be.
For verbs ending in -ar, like viajar, the ending is -a:
viajar: viaja
Adriana viaja a Madrid a menudo. Adriana often travels to Madrid.
For verbs ending in -er or -ir, like comer and vivir, the ending is -e:
comer: come
vivir: vive
Él come mucho. He eats a lot.
Esteban vive en Málaga. Esteban lives in Málaga.