Bất quy tắc:

1)became

2)broke

3)bought

4)began

5)did

6)came

7)ate

8)found

9)got

10)sang

11)took

12)lost

13)rode

14)told

15)thought

16)wrote

17)met

18)made

19)rang

20)ren

Hợp quy tắc:

1)talked

2)stopped

3)liked

4)lived

5)fitted

6)learned

7)watched

8)combed

9)talked

10)arived

11)looked

12)helped

13)rented

14)decide

15)changed

16)worked

17)ironed

18)started

19)filled

20)called

go-went 

be- was/were

do-did

take -took

run-ran

build-built

sit-sat

begin-began

break-broke

buy-bought

bring-brought

sing-sang

teach-taught

see-saw

drive-drove

stand-stood

put-put

fly-fleư

cut-cut

shut-shut

swim-swam

give-gave

ở trên là bất quy tắc

hợp quy tắc:

play-played

like-liked

look-looked

want-wanted

arrive-arrived

cry-cried

study-studied

obey-obeyed

stop-stopped

fit-fitted

happen-happened

listen  - listened

cancel   - cancelled  

travel  - travelled 

pinic-pinicked

traffic-trafficked

skip-skipped

stake-skated

fish-fished

marry-married