| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [been] able | 841 |
|
| 2 | [verb] n't [been] [adj] | 550 |
|
| 3 | [verb] not [been] able | 486 |
|
| 4 | [verb] [not/n't] [been] able | 486 |
|
| 5 | [verb] n't [been] [adj] | 444 |
|
| 6 | [verb] n't [be] able | 227 |
|
| 7 | [verb] n't [been] able | 226 |
|
