现在分词的构成:
(1)直接在动词后加ing
例如:
sing—singing;ski—skiing;
(2)双写词尾加ing
例如:
swim—swimming;jog—jogging;
run—running;
(3)以不发音的e结尾的去e加ing
例如:
ride—riding;dance—dancing;
make—making;
规则动词过去式的构成:
有规则的有:
(1)直接在动词后加ed
例如:
clean—cleaned;milk—milked;
play—played;
(2)以e结尾的直接加d
例如:
dance—danced;taste—tasted;
(3)以辅音字母加y结尾的改y为i加ed
例如:
study—studied;carry—carried;
(4)双写词尾加ed
例如:
stop—stopped;jog—jogged;
不规则的有:
am,is—was;are—were;do,does—did;have,has—had;go—went;meet—met;sit—sat;see—saw;get—got;tell—told;run—ran;come—came;steal—stole;read—read;
形容词副词比较级的构成:
规则的有:
(1)直接在形容词或副词后加er
例如:
small—smaller;low—lower;
(2)以e结尾的加r
例如:
late—larer;
(3)双写词尾加er
例如:
big—bigger;thin—thinner;fat—fatter;