| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] n't [been] able [verb] | 76 |
|
| 2 | [pers pn] [vb base] n't [been] able [verb] | 73 |
|
| 3 | they [vb base] [adv] [been] able [verb] | 24 |
|
| 4 | they [vb base] [not/n't] [been] able [verb] | 15 |
|
| 5 | they [vb base] not [been] able [verb] | 15 |
|
| 6 | they [verb] n't [been] able [verb] | 14 |
|
| 7 | they [vb base] n't [been] [adj] [verb] | 6 |
|
| 8 | they [vb base] n't [been] able [verb] | 6 |
|
| 9 | they [vb base] n't [be] able [verb] | 6 |
|
