| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [adv] been [verb] | 1439 |
|
| 2 | have [adv] been [verb] at | 264 |
|
| 3 | it have been [verb] at | 77 |
|
| 4 | it have [adv] [verb] at | 10 |
|
