| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [vb pp] by | 2411 |
|
| 2 | [Wh pn] [vb base] been [vb pp] | 514 |
|
| 3 | [Wh pn] [vb base] [vb pp] by | 27 |
|
