iPhone auto-correct issues

In Messenger I was typing a friend. “I should not of dropped that spoiler. But you are no dummy”

And it came out as, “O shot not of dropped that soldier. But you are no dummy”

Makes me look stupid the keyboard replaces words on me after I add punctuation. Had been happening a lot more recently, especially when trying to type or swipe-type fast.

[Re-Titled by Moderator]