Computers don't know how to spell. They just think they do....
I've never seen things spelt so consistently wrong since they introduced computer spellcheckers.
Use a dictionary - they are much more reliable. And you can check that the word you are trying to use is actually the right one - not something the computer has decided might to foist upon you , which turns your sentence into gibberish.
Quack!!
Geoff the Duck.