| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] a [noun] | 3252 |
|
| 2 | involves [verb] a [noun] | 67 |
|
| 3 | which involves a [noun] | 26 |
|
| 4 | which involves [verb] [noun] | 11 |
|
| 5 | which involves [verb] a | 9 |
|
