| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been [vb pp] | 2673 |
|
| 2 | been [vb pp] [det] | 831 |
|
| 3 | [to-vb] [vb pp] [det] | 774 |
|
| 4 | [to-vb] been [det] | 82 |
|
