| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had not been able | 138 |
|
| 2 | [pers pn] had not been able | 134 |
|
| 3 | it had not been [adj] | 48 |
|
| 4 | it have not been able | 10 |
|
| 5 | it [verb] not been able | 10 |
|
| 6 | it had not [be] able | 5 |
|
| 7 | it had [adv] been able | 5 |
|
| 8 | it [vb past] not been able | 5 |
|
| 9 | it had not been able | 5 |
|
| 10 | it had not [been] able | 5 |
|
| 11 | it had not be able | 5 |
|
