Hello, and welcome!
I understand why you are confused - this is the most complicated of English verbs, and all my students have trouble with some part of it!
First, yes be is a verb, and here are the basic forms:Infinitive following main verb:
base form be infinitive to be present am, is, are past was, were present participle being past participle beenWhen she dies she wants to be cremated, not buried.Base form following modal verb had to:
The diagrams are to be included in his record book. [This has future meaning.]
The inflation rate is now reckoned to be ten percent.
A whole day's work had to be redone.
I hope this helps!
Student or Learner