| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but we have not be able | 7 |
|
| 2 | but we have not be able | 7 |
|
| 3 | but we [vb base] not be able | 7 |
|
| 4 | but we [verb] not be able | 7 |
|
| 5 | but we [verb] not been able | 7 |
|
