| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [prep] | 405 |
|
| 2 | which [modal v] [prep] | 383 |
|
| 3 | [Wh det] must [prep] | 21 |
|
| 4 | which must [prep] | 20 |
|
| 5 | which must [prep] | 20 |
|
