| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [to-vb] [art] | 6506 |
|
| 2 | how [to-vb] [art] | 2014 |
|
| 3 | is how [art] | 200 |
|
| 4 | is how [to-vb] | 150 |
|
