| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [adv] [art] | 17273 |
|
| 2 | how [adv] [art] | 1088 |
|
| 3 | [to-vb] how [art] | 798 |
|
| 4 | [to-vb] how [adv] | 546 |
|
