| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [vb pp] to be able [verb] | 16 |
|
| 2 | [am/are] [vb pp] to be able [to-vb] | 16 |
|
| 3 | are [vb pp] to be able [verb] | 14 |
|
| 4 | [am/are] expected to be able [verb] | 7 |
|
