I think commas are the HARDEST punctuation to get right!

Important: commas cannot be used to join two sentences. This is a common error called a ‘Comma Splice’. Go to the ‘Sentence Problems‘ page for more info.

If you find a really good website that explains when and how to use commas, please let me know.

When do I use Commas?

Basic intro by this nice English language teacher: https://www.youtube.com/watch?v=keZpj7PjNEo

Kahn Academy tells you about the comma: https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/introduction-to-commas/v/meet-the-comma-the-comma-punctuation-khan-academy Do the quiz as well 🙂

TED Ed talk on Commas. It’s more for more advanced students because they use all the metalanguage (parts of speech names): https://www.youtube.com/watch?v=GHnl1O3NGJk

Grammarly explanation: https://www.grammarly.com/blog/comma/