| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [be] [prep] | 436 |
|
| 2 | [pron] must [be] [noun sg] | 207 |
|
| 3 | must [be] [noun sg] [prep] | 105 |
|
| 4 | [pron] [be] [noun sg] [prep] | 36 |
|
| 5 | [pron] must [noun sg] [prep] | 8 |
|
