| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [adv] be [vb pp] [prep] | 449 |
|
| 2 | [adv] be [vb pp] [adj] [prep] | 118 |
|
| 3 | must [adv] be [adj] [prep] | 87 |
|
| 4 | must be [vb pp] [adj] [prep] | 83 |
|
| 5 | must [adv] be [vb pp] [adj] | 23 |
|
