规则动词的过去式的规则有哪五条?

Question

规则动词的过去式的规则有哪五条?

Answer 1

动词过去式规则变化大全:
1.以不发音e结尾的动词, 直接加d: smile--smiled; hope--hoped died;tied.
2.双辅音结尾的情况:
两个辅音字母(consonant)结尾的, 直接加ed: helped; learned.
3.两个元音+一个辅音结尾的情况:
两个元音(vowels:a,e,i,o,u)加一个辅音字母结尾的动词,直接加ed: rained; heated.
4. 一个元音+一个辅音结尾的情况:
一个元音(vowel)加一个辅音字母结尾的动词:
(1) 对单音节(one-syllable)单词,双写最后一个辅音字母加ed.
. stopped; planned;
(2) 对双音节(two-syllable)单词,如果重读在第一个音节处,不双写加ed. 如: visited(重读在vis前); offered(重读在of前);
(3) 对双音节(two-syllable)单词,如果重读在第二个音节处,双写词尾辅音字母加ed. 如: preferred(重读在fer前); admitted(重读在mit前); referred; deferred;
5. y结尾的情况:
元音+y结尾动词,直接加ed: played; enjoyed.
辅音+y结尾动词,y变i加ed: worried;studied.