| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [pron] have been such a | 6 |
|
| 2 | [Wh adv] there have been such a | 5 |
|
| 3 | [Wh adv] [ex0] have been such a | 5 |
|
| 4 | [Wh adv] there have been such a | 5 |
|
