List four things to look for when you're proofreading

1. Capitialization
2. Spelling
3. Grammar
4. Periods, Question Marks,etc.
Hope this helps a little bit

Ifound this on google “use commas to separate two or more coordinate adjectives that describe the same noun. be sure never to add an extra comma between the final adjective and the noun itself or to use commas with non-coordinate adjectives.” i hope this you for what your looking for