If what you intended is not on the list, you can spell your correction in ordinary English letters, and they will be typed into the selection box. We forgive it in ourselves, but the Dragon notices when we slur our words or run them together. For instance, when this paragraph was first dictated, the program took the quickly pronounced slur our for slower. Because the program uses context to guess what words you are speaking, you actually get better recognition if you speak a full sentence or at least a long phrase. It takes a while to get much productivity out of the Dragon.
Training makes a real difference.
When we began working with the Dragon, it was making an error in every sentence. After three weeks we were able to dictate paragraphs at high speed with fewer mistakes than we make when typing. It is possible to control menu commands. If you say Click File, the file menu will descend. If you then say Click Save, you will save the file.