I got a gear cube and started scrambling with wild abandon. Then I stopped and tried to solve it. I couldn't. I went online to watch YouTube videos. I learnt there are three phases involved in solving it, the first being the corners. In EVERY video I watched, when they get two of a layer's corners to match, the other two are automatically paired, and they just have to do a few rotations to get those corners on one side. This doesn't happen to me. I know how to pair two corners, but when I look for the other two, they are most of the time apart. I can get one of those two to join the pair, but I don't know what to do with that last corner out of place.
In short, When I try solving the first phase, I can get three corners exactly where they should be, but I don't know how to get all four corners together.