| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] unable [to-vb] [pron] [prep] the | 7 |
|
| 2 | was unable [to-vb] [pron] [prep] [art] | 6 |
|
| 3 | [was/were] unable [to-vb] [pers pn] [prep] [art] | 5 |
|
