時間・時点N3
〜て以来
since... / ever since... (first time)
Structure
V-て形 + 以来
Explanation
Indicates that since an action, "ever since...". Attaches to the te-form + 以来; the main clause is often a continuing state or a first experience.
Examples
日本に来て以来、一度も実家に帰っていません。
Since coming to Japan, I haven't returned home once.
結婚して以来、ずっとこの町に住んでいます。
I've lived in this town ever since I got married.
Note
て以来 means "ever since..."; the main clause is usually a continuing state. 以来 marks a starting point.