| 释义 |
Irregular verbs Irregular verbs are verbs that do not form the past simple tense and the past participle by adding -ed to the base form. The three main groups of irregular verbsIn Group A, the base form, the past simple and the past participle are the same:| 1 | the base form | put | | 2 | the present simple tense | puts | | 3 | the past simple tense | put | | 4 | the present participle | putting | | 5 | the past participle | put |
| A | bet | cut | let | set | spread | | burst | hit | put | shed | thrust | | cast | hurt | shut | split | upset |
In Group B, the past simple and the past participle have the same form:| 1 | the base form | buy | | 2 | the present simple tense | buys | | 3 | the past simple tense | bought | | 4 | the present participle | buying | | 5 | the past participle | bought |
B1| base form | past form | | bend | bent | | bind | bound | | bleed | bled | | bring | brought | | build | built | | buy | bought | | catch | caught | | find | found | | hang | hung | | have | had | | hear | heard | | keep | kept | | kneel | knelt | | lay | laid | | make | made | | say | said |
Some of these verbs have alternative spellings for the past participle:B2The past form may be either a or b.| base form | past forms | | burn | burnt | burned | | dream | dreamt | dreamed | | lean | leant | leaned | | learn | learnt | learned | | smell | smelt | smelled | | spell | spelt | spelled | | spill | spilt | spilled | | spoil | spoilt | spoiled |
In Group C, the base form, the past simple, and the past participle all have different forms:| 1 | the base form | go | | 2 | the present simple tense | goes | | 3 | the past simple tense | went | | 4 | the present participle | going | | 5 | the past participle | gone |
C| base form | past forms | | arise | arose | arisen | | awake | awoke | awoken | | bear | bore | borne | | begin | began | begun | | bite | bit | bitten | | blow | blew | blown | | break | broke | broken | | fly | flew | flown | | give | gave | given | | know | knew | known | | ride | rode | ridden | | ring | rang | rung | | rise | rose | risen | | saw | sawed | sawn | | see | saw | seen | | shake | shook | shaken | | show | showed | shown | | shrink | shrank | shrunk | | strive | strove | striven | | take | took | taken | | throw | threw | thrown | | write | wrote | written |
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