| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [modal v] [be] able [verb] | 435 |
|
| 2 | [modal v] [prep] [be] able [verb] | 137 |
|
| 3 | i [modal v] [prep] [be] [verb] | 38 |
|
| 4 | i [modal v] [prep] [be] able | 28 |
|
