| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must be [vb pp] from | 16 |
|
| 2 | [Wh det] must be [vb pp] from | 9 |
|
| 3 | which must be [vb pp] from | 9 |
|
| 4 | which must be [vb pp] from | 9 |
|
| 5 | it must be [vb pp] from | 9 |
|
| 6 | it must be [vb pp] from | 9 |
|
