规则动词的过去式
1.动词原形+-ed(大部分动词)
want—wanted work—worked need—needed clean—cleaned wash—washed spell—spelled help–helped
2.以不发音的e结尾的在词尾加-d
like—liked live—lived use—used move—moved
hope—hoped dance—danced
3.以“辅音+元音+辅音”(即闭音节)结尾且“辅音+元音+辅音”要重读的动词(多音节词要同时满足这两个条件),先双写结尾的辅音字母,再加-ed;动词的现在分词变化规律也是如此。
stop–stopped-stopping , trip—tripped—tripping , shop-shopped-shopping
admit–admitted–admitting. (permit也是如此)
prefer–preferred—preferring (refer也是如此)
但是 limit-limited-limiting (尽管 辅音+元音+辅音 结尾,但最后三个字母不重读)
offer-offered-offering (原因同上)
wait—waited- waiting (ai两个元音字母)
eating (ea两个元音字母)
4.一般而言,以辅音字母加y结尾的动词,先把y变成i,再加-ed(元音字母加y结尾的,直接加ed, 例如 played, stayed, destroyed)
study—studied carry—carried hurry—hurried marry—married copy—copied cry—cried
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