| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been [verb] to [noun] | 33 |
|
| 2 | been able [verb] to [noun] | 16 |
|
| 3 | not been able [verb] [noun] | 15 |
|
| 4 | not been able [verb] to | 10 |
|
