| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [prep] [adv] | 113 |
|
| 2 | he must be [adv] | 68 |
|
| 3 | he must be [prep] | 34 |
|
| 4 | he must [prep] [adv] | 8 |
|
