| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it had been [vb pp] | 41 |
|
| 2 | [adj] it had be [vb pp] | 41 |
|
| 3 | [num] it had be [vb pp] | 35 |
|
| 4 | [adj] it had be reported | 5 |
|
