| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | able [to-vb] how | 86 |
|
| 2 | able to see how | 12 |
|
| 3 | able to explain how | 9 |
|
| 4 | able to show how | 6 |
|
| 5 | able to learn how | 5 |
|
