After negative adverbial expressions Under no circumstances can we work with people under the age of 16. In no way can that man be held responsible. At no time, did the boss say she would give you extra shifts. Not until I read my name did I believe I passed the exam.
After seldom, rarely, never and little Seldom have I seen such an impressive view. Rarely did she ask for any help. Never before I had felt so afraid. Little did we imagine how good the play would be.
After hardly, scarcely, no sooner when one thing happens after another Hardly had I started my run when it started to rain. Scarcely had we sat down for dinner when she received an urgent text. No sooner had I finished one project than I had to start another one.
Note that after hardly and scarcely we use when, and no sooner than.
After adverbial expressions beginning with only and not only Only after the meeting did we realize the importance of the topic. Not only was the work interesting, it was also very well paid.