| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [adv] to | 494 |
|
| 2 | [vb mod] be [adv] to | 494 |
|
| 3 | must be [adv] [prep] | 134 |
|
| 4 | must [be] [adv] to | 22 |
|
| 5 | must be [adv] to | 22 |
|
