put, put, put, read, read, read, run, ran, run, say, said, said, see, saw, seen, sell, sold, sold, send, sent, sent, sing, sang, sung, sit, sat, sat, sleep, slept, slept, speak, spoke, spoken, spend, spent, spent, swim, swam, swum, take, took, taken, teach, taught, taught, tell, told, told, think, thought, thought, understand, understood, understood, wear, wore, worn, win, won, won, write, wrote, written

Irregular verbs: second and third forms

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