| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] 'd been unable | 9 |
|
| 2 | [pers pn] 'd been unable | 7 |
|
| 3 | 'd been unable [verb] | 9 |
|
| 4 | 'd been unable [to-vb] | 9 |
|
