| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [vb past] [been] able | 7 |
|
| 2 | [conj] had [been] able | 7 |
|
| 3 | [conj] [vb past] been able | 7 |
|
| 4 | and [vb past] [been] able | 7 |
|
| 5 | [coord] [vb past] [been] able | 7 |
|
