| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] they have been unable | 14 |
|
| 2 | [subord] they have been unable | 11 |
|
| 3 | because they have been unable | 8 |
|
| 4 | because they have been unable | 8 |
|
| 5 | they have been unable [to-vb] | 27 |
|
| 6 | they have been unable [verb] | 27 |
|
| 7 | they have been unable to find | 5 |
|
| 8 | they have been unable find | 5 |
|
