| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in [Wh det] [pron] | 9057 |
|
| 2 | [Wh det] [pron] must | 547 |
|
| 3 | in [pron] must | 44 |
|
| 4 | in [Wh det] must | 32 |
|
