| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] to [be] | 4613 |
|
| 2 | [modal v] to [be] | 4613 |
|
| 3 | ought [prep] [be] | 1865 |
|
| 4 | ought to [be] | 1859 |
|
