| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [adv] be | 2734 |
|
| 2 | [vb mod] never be | 2041 |
|
| 3 | [modal v] never be | 2041 |
|
| 4 | must never [be] | 71 |
|
| 5 | must never be | 71 |
|
| 6 | must never [be] | 71 |
|
| 7 | must never be | 71 |
|
