Khan Academy Grammar
There is *one* extremely rare case in which we use apostrophes to make things plural. David and Paige, KA's resident grammarians, discuss this unusual case.
"FANBOYS" is a mnemonic device you can use to help remember the coordinating conjunctions of English. Team Grammar made this video, figuring that we couldn't very well cover conjunctions without writing a song, now could we? If you're moved to make your own version, send it our way at firstname.lastname@example.org; we're excited to hear what you do!
The apostrophe has a bizarre history, including being the name for something that's not really related to grammar at all. David, Paige, and special guest Jake explain.
David, Paige, and Jake cover the fascinating history of the possessive apostrophe. Stay tuned for this bonus video!
Why does "goose" become "geese" and "foot" become "feet"? David the Grammarian and Jake the Linguist explain.
You may have been hearing a lot about the "singular they" recently. But what is it? How does it work, what is its history, and is it grammatical? Let's find out.
We've got a bunch going all at once, here: learn to tell the differences between these eight frequently-confused words.
David and Paige explain the meaning of two English words that look and sound very similar but act very different: _its_ and _it's_.
Commas separate adjectives when those adjectives belong to the same category: determiner, opinion, size, age, shape, color, origin and material. So two adjectives that are both opinions (a mushy, sticky apple) should have a comma between them, but two adjectives that are an opinion and color (a mushy green apple) should not.
In English, you use commas to separate introductory elements from the rest of a sentence. Find out how with David and Paige!
Complex sentences are simple sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot them and use them in this video.