| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] in a | 776 |
|
| 2 | which have been [verb] in | 548 |
|
| 3 | which have been [verb] a | 44 |
|
| 4 | which have [verb] in a | 21 |
|
| 5 | which have been in a | 6 |
|
