| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb mod] [adv] be able to | 11 |
|
| 2 | they [vb mod] not be able to | 8 |
|
| 3 | they [vb mod] [not/n't] be able to | 8 |
|
| 4 | they [vb mod] n't be able to | 6 |
|
