4 Grammar Rules to Learn for the ACT English Section

"High school students who plan to take the ACT must first master a number of grammatical rules for the English section.

For many students, grammar is a dreaded subject, but it is a central portion of ACT English. Conventions of Standard English accounts for 51-56 percent of this section score, versus 29-32 percent for Production of Writing and 13-19 percent for Knowledge of Language.

Here are four major areas of grammar that students should understand fully prior to completing the ACT English section." …

https://www.usnews.com/education/blogs/college-admissions-playbook/articles/2018-08-27/4-grammar-rules-to-learn-for-the-act-english-section