What are the basic building blocks of verb meanings, how are they composed into more complex meanings, and how does this explain the grammatical properties of verbs and their relationships to other words with related meanings? These questions are fundamental to the study of verb meaning, and some of the most fruitful attempts to answer them have come from event-structural theories, wherein verb meanings are assumed to be decomposed into an event template, which captures the verb’s broad temporal and causal contours, and an idiosyncratic root shared across templates, which describes specific actions and states for a given verb. An open question is what the division of labor is between the template and the root in a given verb’s event templat...