... object, inseparable): stop being behind: wyrównywać, doganiać innych. "Terry stopped to rest for a few minutes. He'll catch up / catch up with us later." check in (to) (inseparable): ... less thin; gain weight: zaokrąglać się, wypełniać "Jerry used to be really skinny, but in the last year he's begun to fill out." find out (about) (inseparable): learn / get information ... to begin!" look into (inseparable): investigate / get more details about something: sprawdzić, zbadać. "Someone said there was a meeting at 9:30 but I haven't heard anything about...