| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] have they | 63 |
|
| 2 | why have they | 50 |
|
| 3 | [Wh adv] had they | 40 |
|
| 4 | where have they | 30 |
|
| 5 | how have they | 21 |
|
