| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] able to [be] | 44 |
|
| 2 | [modal v] [be] able to [be] | 44 |
|
| 3 | should [be] [adj] to [be] | 22 |
|
| 4 | should [be] able to [be] | 13 |
|
| 5 | should [be] able [prep] [be] | 13 |
|
