| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been a | 187 |
|
| 2 | have been such a | 154 |
|
| 3 | [Wh det] have been such | 14 |
|
| 4 | [Wh det] have such a | 10 |
|
