| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be able [verb] | 6214 |
|
| 2 | to be able [verb] | 3118 |
|
| 3 | [modal v] to be [verb] | 1284 |
|
| 4 | [modal v] to be able | 146 |
|
