Most of my poems come from real life events, be they my own or someone else's<br/><a href='https://www.quora.com/How-do-you-find-the-subject-of-a-poem' target='_blank' rel='nofollow'>https://www.quora.com/How-do-you-find-the-subject-of-a-poem</a><br/>What is the grammatical function of "be" and what does it refer to or describe?