| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [prep] least be | 126 |
|
| 2 | [modal v] [prep] least be | 126 |
|
| 3 | must [prep] [adv] be | 24 |
|
| 4 | must [prep] least [be] | 13 |
|
| 5 | must [prep] least be | 13 |
|
