| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be able [verb] a | 472 |
|
| 2 | [modal v] be able [verb] [adv] | 337 |
|
| 3 | [modal v] be [verb] [adv] a | 54 |
|
| 4 | be able [verb] [adv] a | 19 |
|
