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see
saw - seen
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sit
sat - sat
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swim
swam - swum
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Okay!
teach
taught - taught
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Okay!
sing
sang - sang
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Okay!
sell
sold - sold
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Okay!
speak
spoke - spoken
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Okay!
pay
paid - paid
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Okay!
send (a letter)
sent - sent
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Okay!
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