to stop communicating with someone
誰かと連絡を取らなくなる (dareka to renraku o toranakunaru)
"We lost touch after college."
"大学の後、私たちは連絡を取らなくなった。" (daigaku no ato watashitachi wa renraku o toranakunatta)
to verify that someone or something is doing well
to fail to experience something enjoyable
To be very sure or confident about something.
to make sure income and expenses are equal
to talk too much to someone
broadcasting live; being aired on television or radio