六年级英语四大时态动词变化规则

一、动词第三人称单数的构成：
1、动词原形后面直接加-s
look—looks read—reads play—plays stop—stops make—makes
2、在以字母s, x,ch,sh,o结尾的动词后加-es
catch—catches watch—watches wash—washes tomato—tomatoes potato—potatoes go—goes do—does
3、辅音字母加y结尾的动词变y为i，再加-es
carry–carries study–studies hurry–hurries cry–cries
4、特殊变化
have-has be-is
二、动词过去式变化规则：
*规则动词的过去式变化如下：
1、一般情况下，动词词尾加-ed ，如：
work—worked play—-played wanted—wanted act—acted
2、以不发音的-e 结尾动词，动词词尾加-d，如：
live—lived move—moved
3、以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如：
study—studied copy—copied cry—cried carry—carried
4、以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加-ed，如：
shop—shopped
*不规则动词的过去式：
is—was are—were begin—began buy—bought come—came do—did get—got go—went
have/has—had make—made read—read run—ran see—saw take—took hold—held give—gave
三、动词ing的构成规则：
1、一般情况下,直接在动词后加－ing
work —working pass— passing watch—watching
2、动词以不发音的－e结尾,要去－e加－ing
take — taking make— making dance— dancing
3 、重读闭音节的动词,要双写词尾字母,再加－ing
cut —cutting swim—swimming run—running shop—shopping
put — putting begin — beginning
四、名词单复数变化规则：
1、直接加-s.
tree—trees desk—desks card—cards parent—parent 2、以s,x, ch, sh 结尾的加es.
bus—buses box-boxes watch-watches glass-glasses
3、以辅音字母+ y结尾的，改y为i再加es.
country-countries city-cities baby-babies family-families
特例：：boy-boys, monkey-monkeys, toy-toys, play-plays(以元音字母结尾)
4、以o结尾的单词，口诀：黑人英雄爱吃西红柿马铃薯
Negro-Negroes hero-heroes potato-potatoes tomato-tomatoes。