used to emphasize that sb does the same thing very often, usually in an annoying way :
All he ever does is grumble about things.
used to emphasize that sb does the same thing very often, usually in an annoying way :
All he ever does is grumble about things.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005