in-adverbials + simple past express the ‘size’ of a [+durative] [+telic] eventuality, and as a result: With states they are usually anomalous because states are [–telic]. // With activities they are usually anomalous because activities are [–telic] // With accomplishments, which are [+durative] [+telic], they are perfectly natural and express duration of the event // With achievements, which are [–durative], they can only express the time elapsed before the event (onset reading). But this reading is more natural with the preposition within // With semelfactives they are usually anomalous because semelfactives are [–durative] [–telic]. in-adverbials +future tense express a delay-before-the-eventuality reading from the time of speech and are thus compatible with all aspectual classes . for-adverbials express the duration of a [–telic] eventuality. With states, which are [–telic], they express duration of the state . With activities, which are [–telic], they express duration of the event. With accomplishments they are generally anomalous because accomplishments are [+telic] . In some cases they for-adverbials can occur with accomplishments, but then they express a repeated series of events. With achievements they are generally anomalous because achievements are [+telic]. In some cases for-adverbials can occur with achievements, but then they express the duration of the state of affairs which is the result of the achievement. With semelfactives, which are [–durative], it can only express duration of the iterated event. Theprogressive emphasizes the progress of a [+durative] eventuality. With states it is generally anomalous because states are [+static] and thus cannot involve progress, but with some it suggests temporariness. With activities it is very natural, as activities are [–static]. with accomplishments it is also very natura, as accomplishments are [–static]. With achievements it is generally anomalous because achievements are [–durative] and thus have no process component. But in a number of achievements there is a coerced reading in which the progressive emphasizes the progress of the process leading up to the event. With semelfactives, , it can only take an iterative interpretation in which it emphasizes the progress of several instances of the event.