marclearnsjapanese:Intermediate Japanese textbook grammar notes.V(plain)ことになっているBe expected/supposed
marclearnsjapanese:Intermediate Japanese textbook grammar notes.V(plain)ことになっているBe expected/supposed to; it is a rule/customs that~–V(plain) ことになったIt has been decided/arranged that~–ことになっている/ことになった indicates a decision has been made beyond he speakers personal control. ことになっています is used when you take about already arranged future plans, while ことにばりました is used when talking about a decision that has already been made. Examples:日本で英語を教えることになっています。I am to teach English in Japan.明日先生に会うことになっていますI am supposed to meet my teacher tomorrow.日本の会社で仕事をすることになりました。It has been arranged that I will be working at a Japanese company. 日本の家び上がる時は、くつをぬことになっています。When you enter a Japan house, you are supposed to take off your shoes. -- source link