Examples:
- 彼と五年前に別れて以来、一度も連絡を取っていない。I have never been in contact with him since I broke up with him five years ago.
- 今年は水不足になりそうだ。先月の初めに降って以来、ずっと晴れの日が続いている。Water is likely to run short this year. It's been a sunny day since it rained early last month.
- 結婚して以来、仕事と家事に追われる日々が続いている。Ever since I got married, I've been busy with work and housework.