| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've [vb pp] [to-vb] a | 307 |
|
| 2 | [vb pp] [to-vb] on a | 167 |
|
| 3 | 've [vb pp] [to-vb] on | 54 |
|
| 4 | 've [vb pp] on a | 40 |
|
