摘要：(三)不规则动词的过去式: a.过去式与动词原形的拼写形式相同:let → let, put → put, read → read,(注意read的过去式读[red]) b. i → a: begin → began, drink → drank, give → gave, ring → rang, sing → sang, sit → sat, swim → swam c. i → o: drive → drove, ride → rode, write → wrote d. ow → ew: grow → grew, know → knew, throw → threw e. 含ough或augh的:bring → brought, buy → bought, think → thought,catch → caught, teach → taught f. am is ---was are ---were do---did can---could come---came 不规则动词的过去式平时出现要留心,逐个熟记,注意积累.

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