Can You Say Christmases?

Apostrophes are for contractions (e.g., isn't, we're, don't) and possessive nouns

possessive nouns
Together with a noun, as in my car, your sisters, his boss. ... Without an accompanying noun, as in mine is red, I prefer yours, this book is his. A possessive used in this way is called a substantive possessive pronoun, a possessive pronoun or an absolute pronoun.
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(e.g., Bob's cousin, our nation's flag, Santa's list). Since Christmases is simply plural here, and not possessive, just add -es: Christmases.

Is there a plural of Christmas?

The plural form of Christmas; more than one (kind of) Christmas.

How do you make Chris plural?

When you follow the rules of The Associated Press Stylebook, Chris' is proper. With all other style guides, Chris's is correct.

Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.