This is the 4699th most frequent Spanish word.
comenzamos
"We start" or "we begin."
In this sentence, 'comenzamos' is used to indicate beginning something as a group, here the class.
Comenzamos la clase con una actividad interesante.
We start the class with an interesting activity.
Here, 'comenzamos' refers to a future intention, depending on the condition described.
En cuanto llegues, comenzamos a preparar la cena.
As soon as you arrive, we will start preparing dinner.
Here, 'comenzamos' emphasizes the habitual action of starting new projects as a group.