| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've [adv] [be] [vb pp] | 270 |
|
| 2 | [adv] [be] [vb pp] before | 114 |
|
| 3 | 've [adv] [vb pp] before | 59 |
|
| 4 | 've [adv] [be] before | 6 |
|
