| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i have n't [be] able to do | 5 |
|
| 2 | i [verb] n't [be] able to do | 5 |
|
| 3 | i [verb] n't be able to do | 5 |
|
| 4 | i [verb] n't [been] able to do | 5 |
|
| 5 | i [verb] n't been able to do | 5 |
|
