Back in iOS 10, it was a new feature that words from a different language and be mixed in your primary language and wouldn't get autocorrected. And you can type the whole thing in that other language and it will actually help you put accent on these foreign words. Then in iOS 11 it all disappeared. Does anyone have a fix for this?
For this feature I am mentioning, we can see an article pointing it out here http://appleinsider.com/articles/16/06/22/inside-ios-10-multilingual-typing-eases-autocorrect-woes