Notice how o changes to ue in almorzar and poder. That’s because they’re both o-to-ue verbs. Like other stem-changing verbs, the o doesn’t change when used with nosotros.
| almorzar to have lunch |
poder to be able to |
|---|---|
| almuerzo | puedo |
| almuerzas | puedes |
| almuerza | puede |
| almorzamos | podemos |
| almuerzan | pueden |
Another set of stem-changing verbs changes from e to ie. But remember to keep an eye on nosotros!
| cerrar to close |
entender to understand |
|---|---|
| cierro | entiendo |
| cierras | entiendes |
| cierra | entiende |
| cerramos | entendemos |
| cierran | entienden |