| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have not [been] able | 12 |
|
| 2 | who [verb] not [been] able | 12 |
|
| 3 | who [verb] not been able | 12 |
|
| 4 | who [verb] not [been] able | 7 |
|
| 5 | who have not [been] able | 6 |
|
| 6 | who [vb base] not [been] able | 6 |
|
| 7 | who [verb] n't [been] able | 5 |
|
