per1: What were you doing yesterday?
per2: I be chillin, mah homie.
per1: what are you doing?
per2: i be chillin, yo.
per1: what will you do tomorrow?
per2: i be bustin a cap in yo ass if you be assin me mo questions, bistchniz!
Often used to replace "is" "are" "am" "someone's name" "the deffinite article" "the indefinite article" and in most cases, used to replace just about any verb.
"yo, he be..." followed with hand gestures or other miming techniques.