You can see how you can clear predictive text and autocorrections on the iPhone keyboard.
Clear Predictive Text and Auto-correction on iPhone Keyboard
The iPhone keyboard has a “dictionary” personally for you. It stores the words you type the most (when the option is enabled) and it causes predictive text to popup and weird autocorrections. To reset it to the normal state, you need to reset the iPhone keyboard dictionary.
Now that you have reset the iPhone keyboard dictionary, it will clear predictive text as well. There will be no more unwanted autocorrections based on your previous usage behavior. You can thus clear your iPhone keyboard occasionally to make your texting feel fresh. Notify me of follow-up comments by email. Notify me of new posts by email.
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