| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [verb] [art] [adj] | 616 |
|
| 2 | how [to-vb] [art] [adj] | 487 |
|
| 3 | [adv] to produce [art] [adj] | 63 |
|
| 4 | how produce [art] [adj] | 6 |
|
