| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] he must | 28 |
|
| 2 | [prep] which he must | 21 |
|
| 3 | [prep] what he must | 7 |
|
| 4 | in [Wh det] he must | 5 |
|
