| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] | 49364 |
|
| 2 | it have been [vb pp] | 5668 |
|
| 3 | it have [vb pp] [prep] | 3017 |
|
| 4 | it have been [prep] | 611 |
|
| 5 | it been [vb pp] [prep] | 26 |
|
