| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which has been [prep] | 81 |
|
| 2 | which has be [prep] | 81 |
|
| 3 | which has be in | 44 |
|
| 4 | which has be on | 11 |
|
| 5 | which has be at | 8 |
|
