| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be able [verb] | 6214 |
|
| 2 | [prep] be able [verb] | 3177 |
|
| 3 | [modal v] [prep] be [verb] | 1285 |
|
| 4 | [modal v] [prep] be able | 146 |
|
