The Semantic Aspect of Grammar, Isn't It?

Lissaby and lexical aspect is more about semantics at its core than grammar. The key thing you want to be thinking about, to listen to the aspect for is how all these things will interact with that. So in your dictionary, when you have auxiliary verbs, if they might have a different interpretation, depending on the verb lexical aspect, then mention it there. It's whether or not your events could be canceled or not should definitely be part of the discussion,. Right.