| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] have [adv] been able | 11 |
|
| 2 | and have [adv] been able | 10 |
|
| 3 | and have [adv] been able | 10 |
|
| 4 | [conj] have [not/n't] been able | 7 |
|
| 5 | [conj] have not been able | 7 |
|
