

日本に来て以来、毎日日本語を勉強しています。
卒業以来、彼とは一度も会っていません。
あの事故以来、車の運転が怖くなりました。
"いらい(以来)" is in the lesson "When" (Level 42), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.