| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [not/n't] be able | 218 |
|
| 2 | [not/n't] be able to | 89 |
|
| 3 | may be able to | 21 |
|
| 4 | may [not/n't] be to | 5 |
|
