| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it have been | 1971 |
|
| 2 | it have been [prep] | 611 |
|
| 3 | [subord] it have [prep] | 249 |
|
| 4 | [subord] have been [prep] | 9 |
|
