| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] how [det] | 869 |
|
| 2 | how to do [det] | 106 |
|
| 3 | [to-vb] to do [det] | 45 |
|
| 4 | [to-vb] how to do | 31 |
|
