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【AAA型】原形、過(guò)去式、過(guò)去分詞三者完全一樣。其特點(diǎn)為原形、過(guò)去式和過(guò)去分詞的詞形和讀音都相同,結(jié)尾字母一般是-t或-d。如:
Cut-cut-cut    hit-hit-hit      hurt-hurt-hurt
Cost-cost-cost  put-put-put    let-let-let
Shut-shut-shut        set-set-set
注意:動(dòng)詞read的過(guò)去式和過(guò)去分詞的詞形也與原形一致,但發(fā)音卻不同,分別是[ri:d]-[red]-[red]。
【ABB型】過(guò)去式與過(guò)去分詞相同,但它們與原形不同。
1. 把單詞結(jié)尾的字母-d改為-t。如:
Lend-lent-lent   spend-spent-spent
Send-sent-sent   build-built-built
2. 過(guò)去式與過(guò)去分詞在原形后加?鄄t。如:
Burn-burnt-burnt   learn-learnt-learnt 
Mean-meant-meant   dream-dreamt-dreamt
注意:burn, learn, dream的過(guò)去式和過(guò)去分詞也可以在原形詞尾加-ed。
3. 過(guò)去式與過(guò)去分詞在原形后d。如:
Hear-heard-heard    lie-lied-lied(撒謊)
4. 改變單詞中間的元音字母。如: 
Sit-sat-sat  win-won-won   shine-shone-shone  
Hold-held-held     get-got-got      sell-sold-sold
Stick-stuck-stuck  stand-stood-stood
5. 過(guò)去式和過(guò)去分詞都以-aught或-ought結(jié)尾。如: 
Buy-bought-bought    fight-fought-fought
Think-thought-thought teach-taught-taught 
Catch-caught-caught    bring-brought-brought 
6. 某些以-ay結(jié)尾的動(dòng)詞,其過(guò)去式和過(guò)去分詞是把-ay變成-aid。如:
Say-said-said   pay-paid-paid   lay-laid-laid
7. 某些以-eep結(jié)尾的動(dòng)詞,其過(guò)去式和過(guò)去分詞是把-eep改為-ept。如: 
Keep-kept-kept   sleep-slept-lept
8. 某些以-ell結(jié)尾的動(dòng)詞,其過(guò)去式和過(guò)去分詞是把-ell改為-elt,或在原形后加-ed。如: Spell-spelt-spelt   smell-smelt-smelt
Spell-spelled-spelled           smell-smelled-smelled
9. 另外還有一些其它的不規(guī)則變化。如: 
Have-had-had    find-found-found
Leave-left-left    lose-lost-lost 
Feel-felt-felt     make-made-made
Meet-met-met    tell-told-told
Shoot-shot-shot  
Understand-understood-understood 
【ABA型】過(guò)去分詞與原形相同,過(guò)去式與原形不同。如:
Become-became-become  come-came-come  run-ran-run
【ABC型】原形、過(guò)去式、過(guò)去分詞均不相同。
1. 過(guò)去式是把原形中的-i改為-a,而過(guò)去分詞是改為-u。如:
Sing-sang-sung       begin-began-begun
Swim-swam-swum    ring-rang-rung
Drink-drank-drunk
2. 過(guò)去式是把原形中的-o改為-e,而過(guò)去分詞是在原形詞尾加-n。如:
Grow-grew-grown     throw-threw-thrown
Know-knew-known    blow-blew-blown
3. 有些動(dòng)詞的過(guò)去式不同,而過(guò)去分詞都是在原形詞尾加-n或-en構(gòu)成。如: 
Rise-rose-risen      give-gave-given
Draw-drew-drawn     eat-ate-eaten
fall-fell-fallen     take-took-taken
drive-drove-driven   
4. 原形、過(guò)去式和過(guò)去分詞都各不相同,無(wú)規(guī)律可循。如:
Be-was\were-been      go-went-gone
Do-did-done      break-broke-broken 
Wake-woke-woken     fly-flew-flown
Hide-hid- hidden      choose-chose-chosen
Beat-beat-beaten       ride-rode-ridden  
Write-wrote-written        forget-forgot-forgotten
Freeze-froze-frozen   speak-spoke-spoken 
See-saw-seen      shake-shook-shaken  
Show-showed-shown    wear-wore-worn
Lie-lay-lain(躺下,位于,平放)

 

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