Words like "walk" and "look" are regular verbs – they behave in a predictable way. But there's a whole class of words in English, called irregular verbs, that are harder to predict. David, KA's Grammar Fellow, explains.

Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/intro-to-irregular-verbs?utm_source=YT&utm_medium=Desc&utm_campaign=grammar

Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-funky-ed-irregular-verb-the-parts-of-speech-grammar?utm_source=YT&utm_medium=Desc&utm_campaign=grammar

Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/helping-verbs-the-parts-of-speech-grammar?utm_source=YT&utm_medium=Desc&utm_campaign=grammar

Grammar on Khan Academy: Grammar is the collection of rules and conventions that make languages go. This section is about Standard American English, but there's something here for everyone.

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