| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] been [vb pp] clear [conj] | 8 |
|
| 2 | [adv] been [vb pp] clear [conj] | 7 |
|
| 3 | [verb] been [vb pp] clear [conj] | 5 |
|
| 4 | have been [vb pp] clear [conj] | 5 |
|
