koribar, poribar..... agulo formal & sadu form of bangla.
korar, porar...... agulo formal & chalito form of bangla.
Dutu rup e formal but bartamane chalito form er babhar korata shavanio.
Jekono akter babohar korte hobe. Hoi sadu othoba chalito.
Ake samaye dutir babohar kora jabe na, tahole guruchandali dhosh hobe.