Conjugate the verb "to be".
I be We be
You be Y'all be
He/she be They be
Sorry, have to take a letter off that conjugation and give you a B. You gave the third person plural pronoun incorrectly. The correct pronoun is "Dey".
And answering the rhetorical question... do dah?
as in..do dah bus be here?
You forgot "it bees." As in, "it bees day way."
Oops, should have been:
"it bees DAT way."