| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [be] able | 145 |
|
| 2 | [prep] [be] able to | 119 |
|
| 3 | [vb past] [be] able to | 10 |
|
| 4 | [vb past] [prep] [be] to | 7 |
|
