His death was a deep regret for all of us.

He deeply lamented his failure.

His business is going smoothly.

This is the common method.

This is a situation that is different from the common case.

A notice came, so tomorrow's meeting has been cancelled.

I notified him of the party schedule.

My eye pain is so severe that it's hard for me to look at the computer screen.

He commutes to school by bicycle every day.

Every day, I commute to school by bicycle.