10个不规则动词过去式动词过去式,动词原形也要,
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urst(爆发,突然发作)---burst---burst, cast(撒,扔,抛)--- cast --- cast

become(变得,成为)---became---become, come(来,来到)---came---come,

run(奔跑,褪色)---ran---run, overcome---overcame---overcome

bend(使弯曲)---bent---bent, build(建筑,造)---built---built,

lend(借出)---lent---lent, send(打发,送,邮寄)---sent---sent

lose(失去,丢失)---lost---lost,

smell(嗅,闻到,发出气味)---smelledsmelt---smelledsmelt,

spell(拼写)---spelt/spelled---spelt/spelled,