| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] an | 5930 |
|
| 2 | [vb mod] produce [art] | 669 |
|
| 3 | [vb mod] produce [art] | 669 |
|
| 4 | [vb mod] produce a | 520 |
|
| 5 | [modal v] produce an | 88 |
|
