| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [adv] [be] able [to-vb] | 8 |
|
| 2 | to [adv] [be] able [verb] | 8 |
|
| 3 | to [adv] be able [verb] | 8 |
|
| 4 | to [adv] [be] able [verb] | 8 |
|
