动词的第三人称单数 | ||
情况 | 变化规则 | 例词 |
一般情况 | 词尾加-s | work-works stop-stops |
以-ch、-sh、-s、-x、-o结尾的动词 | 词尾加-es | teach--teaches wash--washes dress-dresses fix-fixes go-goes |
以“辅音字母+y”结尾的动词 | y改i,加-es | fly--flies try--tries |
动词的现在分词 | ||
情况 | 变化规则 | 例词 |
一般情况 | 词尾加-ing | go—going ask—asking play—playing study—studying |
以不发音的字母e结尾的动词 | 去掉e,加-ing | write—writing come—coming take—taking close—closing |
末尾只有一个辅音字母的重读闭音节动词 | 双写辅音字母,加-ing | get—getting sit—sitting run—running begin—beginning |
以-ie结尾的动词 | ie改y,加-ing | die—dying tie—tying lie—lying |
动词过去式的规则变化 | ||
情况 | 变化规则 | 例词 |
一般情况 | 词尾加-ed | look—looked play—played help—helped want—wanted |
以不发音的字母e结尾的动词 | 词尾加-d | live—lived hope—hoped like—liked decide—decided |
以“辅音字母+y”结尾的动词 | y改i,加-ed | study—studied carry—carried |
末尾只有一个辅音字母的重读闭音节动词 | 双写辅音字母,加-ed | stop—stopped plan—planned nod—nodded drop—dropped |