名词

名词复数的构成方法有规则的有：

(1)直接在名词后加s

如：orange—oranges; photo—photos

(2) 以x, s, sh, ch 结尾的加es

如：box—boxes; glass—glasses; waitress—waitresses; watch—watches;peach--peaches

(3) 以辅音字母加y结尾的改y为i加es

如：study—studies；library—libraries; hobby—hobbies; family—families

(4)以f, fe结尾的改f, fe 为v＋es

如：knife—knives; thief—thieves

（注:以o结尾的我们学过的只有mango加es, mango—mangoes其余加s,）

不规则的有

man—men; woman—women; people—people; child—children

动词

动词第三人称单数的构成

(1)直接在动词后加s

如：run—runs; dance—dances

(2)以s,sh,ch,o结尾的加es

如：do—does;go—goes;wash—washes;catch—catches

(3)以辅音字母加y结尾的改y为i加es

如：study—studies; carry—carries

现在分词的构成

(1)直接在动词后加ing

如：sing—singing; ski—skiing

(2)双写词尾加ing

如：swim—swimming; jog—jogging;run—running

(3)以不发音的e结尾的去e加ing

如：ride—riding; dance—dancing; make—making

规则动词过去式的构成

(1)直接在动词后加ed

如：clean—cleaned; milk—milked; play—played

(2)以e结尾的直接加d

如：dance—danced; taste—tasted

(3) 以辅音字母加y结尾的改y为i加ed

如：study—studied;carry—carried

(4)双写词尾加ed

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

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