| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb -s] it | 1382 |
|
| 2 | [Wh det] it must | 70 |
|
| 3 | [vb -s] it must | 30 |
|
| 4 | [Wh det] [vb -s] must | 5 |
|
