I have iPad Mini 2 Since iOS 10, spell check seems convoluted. If I mistype a word the red line appears under it OK. Press the word, the word turns blue. Press the blue word and the context list appears above it. Now select "replace" and alternatives appear. Choose and press one of the alternatives, job done. If I remember correctly, all one had to do was press the word red underlined, to get alternatives? What "switch" have I missed?