There are a lot of things in fighting games that players will intuit, as opposed to actively thinking about; one of those things is using normal moves against crouching opponents. Whether it’s knowing if your normal will hit a crouching opponent or knowing whether it will make them stand up if they’re hit, it’s important information to have. To that end, we have here a compilation of all normal moves vs. crouching opponents and their hit effects, coming from Gato Ray.
Some of these cases of course changed with the latest patch as well, so a follow-up video was uploaded to cover all of the normals that have been changed in 1.03.
Source: Gato Ray