| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [verb] [prep] | 1975 |
|
| 2 | have now been [verb] [prep] | 523 |
|
| 3 | it have now been [verb] | 71 |
|
| 4 | it have now [verb] [prep] | 17 |
|
