Question

What kind of a verb is "to be"?

Answer 1

See explanation.

Explanation:

Verbs in English can be sorted in many categories using different criteria.

Verb to be can be classified as:

• an irregular verb because its Past Simple and Past Participle forms do not end in "-ed"

• either a main verb (for example in a sentence He is a teacher) or an auxiliary verb (e.g. John is writing a letter)

• an intransitive verb it does not have a direct object and therfore it cannot be changed to Passive Voice

And probably there can be more categories, but now I can't think of any more.