20 of the Most Common Irregular Verbs 

1.  be (am/is/are)-- was/were
2.  do-- did
3.  eat-- ate
4.  feel-- felt
5.  find-- found
6.  get-- got
7.  give-- gave
8.  go-- went
9.  have (3rd person sing.: has)—had
10.  hear-- heard
11.  know—knew
12.  leave—left
13.  make—made
14.  read-- read (pronounced ‘red’)
15.  say-- said
16.  see-- saw
17.  take-- took
18.  tell-- told
19.  think-- thought
20.  write-- wrote