S E A F A C T (Semantic Analysis For the Animation of Cooking Tasks) is a natural language interface to a computer-generated animation system operating in the domain of cooking tasks. S E A F A C T allows the user to specify cooking tasks "using a small subset of English. The system analyzes English input and produces a representation of the task which can drive motion synthesis procedures. Tl~is paper describes the semantic analysis of verbal modifiers on which the S E A F A C T implementation is based. .