| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] be able [to-vb] | 1520 |
|
| 2 | be able [to-vb] to | 300 |
|
| 3 | [not/n't] be able to | 89 |
|
| 4 | [not/n't] able [to-vb] to | 15 |
|
