Complex sentence: The use of the first and second person imperfective suffixes "-taa", "-at" are of Awadhi origin, while the third person imperfective suffix "-e" is of Bhojpuri origin.
Split into simpler sentences: The use of the first and second person imperfective suffixes "-taa", "-at" are of Awadhi origin. While the third person imperfective suffix "-e" is of Bhojpuri origin.