| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [verb] on | 2113 |
|
| 2 | [verb] on several | 217 |
|
| 3 | [vb pp] on several | 113 |
|
| 4 | [vb pp] [verb] several | 74 |
|
