In English, verbs have a very important place in communication, they are the ones responsible for expressing actions. Words like jump, run, speak… all are common and clear examples of verbs that describe an action that a subject does. However, there is one verb that’s the most used in the English language: the verb to be.

to be

The verb to be is the most important verb in the English language. It means "ser" or "estar" so depending on the context the meaning could be one or the other.