Grammar Inside Out — English

The subject and verb must match in number ( Watch out: "The list of items is on the table," not "are".

Analyze news articles or books specifically looking for how sentences are built, not just what they say. English Grammar Inside Out

Using who, which, that, whose, whom to combine sentences smoothly. The subject and verb must match in number

Are you (like TOEFL) or aiming to improve academic writing ? understand when to use them.

Don't just learn 12 tenses; understand when to use them.