| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been [verb] | 2880 |
|
| 2 | [verb] been [to-vb] | 1120 |
|
| 3 | [to-vb] [be] [to-vb] | 749 |
|
| 4 | [to-vb] be [to-vb] | 749 |
|
| 5 | [to-vb] [been] [to-vb] | 12 |
|
