| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] ought to [be] able | 60 |
|
| 2 | i [modal v] to [be] able | 27 |
|
| 3 | i ought to [be] [adj] | 23 |
|
| 4 | i ought [prep] [be] able | 11 |
|
