| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] he [verb] n't [been] able | 9 |
|
| 2 | he [verb] n't [been] able [verb] | 24 |
|
| 3 | he [verb] n't [been] able [to-vb] | 24 |
|
