| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] to be | 4613 |
|
| 2 | [vb mod] to be | 4613 |
|
| 3 | ought [prep] be | 1865 |
|
| 4 | ought to be | 1859 |
|
| 5 | ought to [be] | 1859 |
|
