原形 过去式 过去分词
6.plan-planned-planned
22.hum-hummed-hummed
25 travel-travelled/travel-travelled/traveled
29 forbid-forbade-forbidden
30 star-starred-starred
36.fit-fitted-fitted
42.kid-kidded-kidded
47.ring-rang-rung
48 close-closed-closed(既是v.也是adj.)
59.shop-shopped-shopped
60.prefer-preferred-preferred
1.trek-trekked-trekked
16.shut-shut-shut
29.throw-threw-thrown
33.shoot-shot-shot
36.rise-rose-risen
37.oversleep-overslept-overslept
40.break-broke-broken
45.flee-fled-fled
48.lend-lent-lent
51.lead-led-led
54.shanke-shook-shaken
59.stick-stuck-ctuck
63.seek-sought-sought
73 chop-chopped-chopped
81.build-built-built
动词变过去式和过去分词时双写最后一个字母是规则变化,
一般：辅音+元音+辅音 的单词后面双写最后一个怎么
例如：shop h是辅音 o是元音 p是辅音 所以过去式和过去分词是shopped~
双写的词不用特别记忆,记住这个规律就行了!