Which INCORRECT usage of English GRAMMAR do you most DISLIKE?

Which INCORRECT usage of English GRAMMAR do you most DISLIKE?

There are several common misuses of words and grammar in the English language. In the poll below, (words are listed alphabetically with correct usage shown first) which one bothers you the most? Or maybe nothing does?

"It is I" instead of "It is me", nominative vs objective
"its" instead of "it's" to indicate possession; "it's" is a short form of "it is"
"led" instead of "lead" for past tense of the verb "to lead"; "lead" is a metal
"You're welcome" instead of "Your welcome", "you're" is a short form of "you are"
Something else, please tell.
Nothing bothers me.
Select gender and age to cast your vote:
Which INCORRECT usage of English GRAMMAR do you most DISLIKE?
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