English grammar rule Wrong apostrophe

Punctuation marks have set rules. One example is that you can’t use a comma followed by a semicolon. You can’t put two commas together, either. Here are some examples of proper punctuation to study.

Examples of 'Wrong apostrophe' rule

Correct	“No,” said Sarah, “I did not pick up the milk.”
Correct	I can’t understand that math problem, can you?
Correct	Wow! You did a great job decorating!