Rewrite sentence using commas.

To be a good skater you have to follow safety rules.

I wrote...
To be a good skater, you have to follow safety rules.

Right.

Thank you...

Your sentence is correctly written using commas. Well done! By using a comma after "skater," you have properly separated the introductory phrase "To be a good skater" from the rest of the sentence. This helps to improve the readability and clarity of your sentence. Remember, when starting a sentence with an introductory phrase, it's important to use a comma to signal that the main part of the sentence is coming next.