| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] [adv prt] on | 516 |
|
| 2 | [Wh det] [was/were] [vb pp] [adv prt] | 445 |
|
| 3 | [Wh det] [was/were] [vb pp] on | 303 |
|
