英语16种时态及例句
英语动词有五种基本形式,即动词原形、第三人称单数(现在式)、过去式、过去分词和现在分词。
动词原形 do 第三人称单数(现在式) does is was be am are have will has were had would had having been being 过去式 did 过去分词 done 现在分词 doing 1. 第三人称单数的构成方法
与名词的单数变复数规则大致一样,即:
(1) 一般情况下由动词后加-s构成:work / works,read / reads等。
(2) 以s, x, z, sh, ch 以及字母o结构的动词,后加-es:guess / guesses, mix / mixes, go / goes, buzz / buzzes, finish / finishes, catch / catches等。
(3) 以辅音字母加y结尾的动词,应将y改为i 再加-es:fly / flies, study / studies等。 【注】① 有个别的变化不规则,如have / has, be / is等。
② 词尾-s和-es 读音规则是:在s, x, z, sh, ch 后的es读作[iz],其余的读作[z]。 2. 过去式和过去分词的构成方法
分规则变化和不规则变化两种。不规则变化需逐个记忆,规则变化遵循以下原则: (1) 一般情况下,在动词后加ed构成:work / worked, stay / stayed, shout / shouted等。 (2) 在以-e结尾动词后只加d:close / closed, like / liked, live / lived, smile / smiled等。 (3) 以辅音字母加y结尾的动词,应将y改为i 再加-ed:study / studied, carry / carried等。
(4) 以重读闭音节或r音节结尾且末尾只有一个辅音字母动词,要双写末尾的辅音字母再加-ed:stop / stopped, admit / admitted, refer / referred, prefer / preferred等。
【注】(1) 以字母l结尾的动词,若末尾一个音节为重读音节,则必须双写l再加-ed,如control / controlled,但若末尾一个音节为非重读音节,则可双写l(英国英语)或不双写l(美国英语),如travel / travel(l)ed。
(2) 动词picnic(野餐)的过去式和过去分词是picnicked,不是picniced。
(3) 词尾-ed 读音规则是:在清辅音后读作[t],元音和浊辅音后读作[d],在辅音[t]或[d]后读作[id]。
3. 现在分词的构成方法
(1) 一般情况下,在动词后加-ing构成:work / working, sleep / sleeping, wait / waiting等。 (2) 在不发音的-e结尾动词去掉e后再加-ing:smile / smiling, move / moving 等。 (3) 以重读闭音节或r音节结尾且末尾只有一个辅音字母动词,要双写末尾的辅音字母再加-ing:sit / sitting, plan / planning, refer / referring, occur / occurring等。
(4) 以字母ie结尾的动词,通常将ie改为y,再加ing:die / dying, lie / lying, tie / tying等。
【注】(1) 以字母l结尾动词,若末尾一个音节为重读音节,则必须双写l再加ing,如control / controlling,但若末尾一个音节为非重读音节,则可双写l(英国英语)或不双写l(美国英语),如travel / travel(l)ing。
(2) 名词变复数、形容词和副词变比较级和最高级、动词变过去式和过去分词等都有“改y规则”,但动词的现在分词没有“改y规则”。
(3) 动词picnic(野餐)的现在分词为picnicking,不是picnicing。
时态:表示动作发生的时间或状态。
时间: 过去 (过去将来) 现在 将来
状态: 一般 完成 进行 完成进行
四个一般:
一般现在:动原do;三单does 一般过去:过去式did
一般将来:be (am is are) going to will + do shall
(一般)过去将来:be (was were ) going to would + do should
四个完成:已经-have (时态标志词)+过去分词done
现在完成:have/has+done过去分词 过去完成:had + 过去分词done 将来完成:be (am is are) going to will have/has+ done shall 过去将来完成:
be (was were ) going to would have/had+ done should
四个进行:正在be(时态标志词) +现在分词doing(动词形式) I am writing.
现在进行;am,is,are+现在分词doing 过去进行:was,were+现在分词doing
将来进行:be (am is are) going to
will +be+现在分词doing shall
过去将来进行:be (was were ) going to would +be+现在分词doing
should
四个完成 进行:have + be / been(过去分词)+doing(现在分词) 现在完成进行:have/has + been+doing 过去完成进行:had+ been+doing
将来完成进行:be (am is are) going to will +have+been +doing shall
过去将来完成进行::be (was were ) going to would +had+been +doing should have
(一般时态)
现在时: Alex studies English everyday. 艾历克斯每天学英语. 过去时: Alex studied English yesterday. 艾历克斯昨天学过英语. 将来时: Alex will study English tomorrow. 艾历克斯明天要学英语.
过去将来时: At that time I knew that Alex would study English. 那时我知道艾历克斯将要去学英语.
(进行时态)
现在时: Alex is studying English now.艾历克斯现在正在学习英语.
过去时: Alex was studying English at this time yesterday. 艾历克斯昨天这时正在学英语. 将来时: Alex will be studying English at this time tomorrow.艾历克斯明天这时正在学英语. 过去将来时: Yesterday he told me that Alex would be studying English this morning. 昨天他告诉我艾历克斯今天早晨要学英语. (完成时态)
现在时: Alex has studied English for one year. 艾历克斯已经学了一年英语. 过去时: Alex had studied English for one year by the end of last month. 到上月底, 艾历克斯已经学习了一年英语.
将来时: Alex will have studied English for two years by the end of next month. 到下月底, 艾历克斯学习英语将两年了.
过去将来时: She told me yesterday that Alex would have studied English for three months by the end of this year. 她昨天告诉我: 到这周末, 艾历克斯学英语将满分个月.
(完成进行时态)
现在时: Alex has been studying English all the morning.艾历克斯一上午一直在学习英语. 过去时: Alex had been studying English by end of last month. 到上月底: 艾历克斯一直在学英语. 将来时: Alex will have been studying English for two years by the end of this year. 到今年底, 艾历克斯已经连续学了两年英语.
过去将来时: He said that Alex would have been studying English for four years by the end of
next year.他说到明年底,艾历克斯学习英语将满4年.
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