| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ought to [be] [verb] [to-vb] [det] | 6 |
|
| 2 | ought [prep] be [verb] [to-vb] [det] | 6 |
|
| 3 | ought [prep] [be] [vb pp] [to-vb] [det] | 5 |
|
