everybodies vs everybody's

English as a Second Language English Vocabulary, Grammar and Idioms
1

I saw the usage of this word. Is it correct?

2

No. You can say “everybody’s position” but not ‘everybodies’ because that word does not exist.[YSaerTTEW443543]

TOEIC short conversations: Last-minute problem[YSaerTTEW443543]