Bihari hindi
Bihari Hindi is a form of Hindi mainly spoken in the Bihar and Jharkhand states of India. The language deviates slightly from Standard Hindi. The first characteristic is the tone of speaking which is very slow, and many times accompanied by stretching the last word of the sentence. Another important characteristic is gender. In Standard Hindi every non-living thing is given either masculine or feminine gender. In Bihari Hindi every non-living object is considered masculine.
Example:- English- Rain is falling. Standard Hindi - Barish ho rahi hai. (barish, or rain, is feminine) Bihari Hindi- Barish ho raha hai. (barish, rain is now masculine). Mainly people don't use the word main(मैं)for word "I" instead word Hum(हम)(We) for word "I" is used. Also people from places like Madhubani and Darbhanga talks with too much respect and never uses word Tum(तुम)(you) instead word aap(आप) is used to talk to everyone.
Many people pronounce the letter ड़(ṛa) as र(ra) in many Bihari Hindi words. also any letter starting with half consonant of Devanagari alphabet that is pronounced with a(अ) or e(इ) depending upon words. However, not many but not everyone talk like that. ex. gyarah(ग्यारह) (means eleven) sometimes pronounced as egyarah(इग्यारह). Also, the words with sha (श) are pronounced as sa (स) e.g. Shaadi (शादी) meaning 'marriage' in Hindi is pronounced as Saadi (सादी) and the words with wa (व) are pronounced as ba (ब) e.g. Ravi (रवी) meaning sun in Hindi is pronounced as Rabi (रबी).
Bihari Hindi has many regional words, such as 'burbak/baklol' (fool), 'ka' (what), 'aayen' (what you mean),'habakna' (caught), 'kaisan' (how), 'begari' (unemployment) etc.