| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] to be [verb] | 3435 |
|
| 2 | [vb infin] to be able [verb] | 198 |
|
| 3 | [modal v] to be able [verb] | 137 |
|
| 4 | [modal v] [vb infin] to be able | 116 |
|
