| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [be] [prep] | 436 |
|
| 2 | [pron] must always [be] | 91 |
|
| 3 | [pron] always [be] [prep] | 26 |
|
| 4 | must always [be] [prep] | 18 |
|
