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Irregular verbs 6 (spend - undergo)
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throw
threw - thrown
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spoil
spoilt - spoilt
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Okay!
strike
struck - struck
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Okay!
stand
stood - stood
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Okay!
spend
spent - spent
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Okay!
teach
taught - taught
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Okay!
think
thought - thought
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Okay!
tell
told - told
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Okay!
undergo
underwent - undergone
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Okay!
spread
spread - spread
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Okay!
take
took - taken
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Okay!
swear
swore - sworn
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Okay!
sweep
swept - swept
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Okay!
steal
stole - stolen
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Okay!
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