Irregular Verbs

Most English verbs are easy about the past: add -ed and you're finished — walk → walked, play → played. Irregular verbs don't play along. They change shape in ways you can't guess from the base form — go → went → gone, sing → sang → sung — so each one has to be learned by heart.

Why do they exist at all? Because they're old. Irregular verbs are the oldest and most-used words in the language, inherited from English's Germanic roots, where you signalled the past by changing the vowel inside the word rather than adding an ending. Over the centuries the neat -ed pattern spread until it had swallowed almost every verb — but the words people said every single day were repeated too often to drift. Frequency kept them frozen. That's why the survivors are precisely the verbs you use non-stop: be, have, do, go, get, make, take, come, see.

And that's why they punch above their weight. There are only about 180 irregular verbs worth knowing — a small, finite list — yet they include most of the verbs you reach for constantly; you'll struggle to tell a story or talk about your day without them. Learn this handful and you've covered most of everyday English. Better still, you meet them so often that they stick with use, and they fall into a few repeating patterns (below) that make them far less random than they first look.

Most irregular verbs fall into one of four patterns. The pattern won't hand you the exact form — you still learn each verb — but it makes the list far less random.

• No change — base, past, and participle are identical: cut / cut / cut, also put, hit, let, cost, read (spelled the same, but the sound shifts to /red/).
• Past = past participle — the last two forms match: buy / bought / bought, also bring, teach, make, find, hold.
• All three different — every form is its own word: go / went / gone, also take, write, speak, drive.
• Vowel shift (the “sing-song” group) — the vowel steps i → a → u: sing / sang / sung, also drink, swim, ring, begin.

The two most irregular verbs of all, be and have, follow no pattern — memorise them first, since you'll use them in almost every sentence.