Grammar › N2 · 02 Time and sequence
〜て以来: ever since
N2 · 02 Time and sequence
Says that something has continued from a certain point in the past until now.
Verb te-form + 以来, or noun + 以来 (入社以来). The state or action after that point continues to the present. Cannot be used for a single past event with no continuing effect. More formal than 〜てから.
Examples
日本に来て以来、毎朝ごはんを自分で作っています。
Ever since I came to Japan, I have cooked my own breakfast every morning.
卒業して以来、彼には一度も会っていない。
I haven't seen him once since we graduated.