Grammar Resources

5 Minute English
Easy and quick explanations for many common points of grammar, with self-grading quizzes.

The Punctuation Guide
An interactive and easy-to-use guide about punctuation with clear explanations and many examples.

Short video tutorials on identifying and correcting common grammar mistakes:

How to Identify the Subject of a Sentence
Don't pass over this lesson! Identifying subjects and verbs is the first step to unlocking nearly everything else about sentence grammar.

Verb Tense and Subject-Verb Agreement
Learn all about verb tense and subject-verb agreement in our first lesson on this tricky topic. We'll look at examples to help you understand this concept.

Subject-Verb Agreement: Using Uncommon Singular and Plural Nouns and Pronouns
Subject-Verb agreement is a tricky. Learn which uncommon singular and plural nouns and pronouns are most likely to trip you up when trying to write your essays with good grammar.

Sentence Fragments, Comma Splices, and Run-On Sentences
Sentence fragments, comma splices, and run-on sentences are grammatical and stylistic bugs that can seriously derail any writing. Learn how to identify and eliminate these errors in your own writing here.

Sentence Agreement: Avoiding Faulty Collective Ownership
A common error occurs whenever a writer uses wording that suggests that a lot of people own or use just one thing, when really they all own or use their own separate things. This video will explain how to identify and fix this type of error.

Independent and Dependent Clauses: Coordination and Subordination
This lesson is about independent and dependent clauses, and how they make up a sentence. Dependent clauses, like the name suggests, rely on other elements in a sentence. Independent clauses, on the other hand, can stand alone. Learn more in this lesson.

Commas: Correct Usage and Basic Rules
Think you know commas? You may be surprised. Even the most experienced writers have problems remembering all the rules. Learn the basics of comma usage in this first of two lessons on the comma.

Comma Usage: Avoid Confusion in Clauses and Contrasting Sentence Parts
Learn more about comma usage from the pros! There are just too many ways to use the comma (it's a basic punctuation mark, after all) to fit in one sentence. Watch here to learn about some of the more common traps students fall into when trying to put commas in the right place.

Punctuation: Using Colons, Semicolons, and Periods
Periods, colons, and semicolons all have the ability to stop a sentence in its tracks, but for very different purposes. In this lesson, learn how and why we use them in our writing.

What are Personal Pronouns?
Pronouns are great for making sure debaters don't have to keep repeating the other guy's name over and over again, but they have many other uses too! In fact, pronouns, you could say, make reading readable. In part one, we'll cover personal pronouns and how they're used before moving on to more esoteric varieties.

Pronouns: Relative, Reflexive, Interrogative & Possessive
In this lesson, we'll look at relative, reflexive, interrogative and possessive pronouns. We'll do this by antagonizing our friend Gary with the whos, whats, whoms, and whichevers that make up these pronouns.

What are Misplaced and Dangling Modifiers?

Parallelism: How to Write and Identify Parallel Sentences
Sentences that aren't parallel sound funny, even if they look perfectly correct at first glance. Learn what makes a sentence parallel, how to revise a sentence to make it parallel, and how to write beautiful, balanced sentences of your own.