| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [to-vb] [adv] [adv] | 575 |
|
| 2 | [verb] [to-vb] [adv] how | 90 |
|
| 3 | [vb infin] [to-vb] [adv] how | 34 |
|
| 4 | [vb infin] [verb] [adv] how | 21 |
|
