I know this probably isn't the best place to ask this question but here goes anyways lol What's wrong with the next sentence/ "What do you feel when you see a smoke detector? Do you ever feel like an astronaut? No? Well, the next time you see one, try to imagine that it's part of your spacecraft's caution and warning system." Apparently it's supposed to be "try imagining" instead of "try to imagine" but I don't see why the latter option would not work. Can anybody explain this to me?