Required_event

Unless a particular Required_situation obtains, Negative_consequences will follow. Alternatively, the Required_situation is required to achieve a Purpose (which avoids Negative_consequences). A set of Circumstances may be specified under which the requirement holds. You must turn in your test by 5 p.m. You better have that fixed by tomorrow or else we'll fire you. The book needs to be shorter to sell to such a young audience. Most, but not all, LUs of this frame are usable in a context that implies a duty or responsibility, concepts related to the Being_obligated frame. However, our analysis is that such interpretations are due to contextual pragmatic strengthening--in other words, a duty is a frequently salient type of purpose that has negative consequences if not achieved.