| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [vb base] to have been [art] | 6 |
|
| 2 | there [vb base] [to-vb] been [art] | 6 |
|
| 3 | [ex0] seem [to-vb] been [art] | 5 |
|
