| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [Wh pn] [vb base] contribute to [art] | 5 |
|
| 2 | [adj] [Wh pn] [vb base] contribute to [art] | 5 |
|
| 3 | [noun] [Wh pn] [vb base] contribute to [art] | 5 |
|
| 4 | [Wh pn] [vb base] contribute to [art] [noun] | 10 |
|
| 5 | [Wh pn] [vb base] contribute to [art] [noun sg] | 8 |
|
