| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have already been | 210 |
|
| 2 | [Wh det] has already been | 119 |
|
| 3 | [Wh det] had already been | 74 |
|
| 4 | [Wh det] have already been | 66 |
|
| 5 | what have already been | 52 |
|
