Do you mean "commemorating"?

"comemorating" is a common misspelling of "commemorating"

How to remember the correct way to spell "commemorating":

The prefix "co" (meaning "together") becomes "com" before a word beginning with "m" such as "mmemorating".

Test your Spelling • Common Misspellings • Terms of Use • Top Ten Misspellings • Contact DoYouMean