1
Past simple of understand
2
Past participle of study
3
Past simple of think
4
Past simple of show
5
Past participle of spend
6
Past simple of write
7
Past simple of sleep
8
Past participle of mean
9
Past simple of steal
10
Past participle of ring
11
Past participle of pay
12
Past simple of rise
13
Past simple of take
14
Past participle of see
15
Past simple of lose
16
Past participle of make
17
Past participle of send
18
Past participle of win
19
Past participle of sit