| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] a significant | 134 |
|
| 2 | [verb] a significant role | 91 |
|
| 3 | [verb] [vb pp] a role | 29 |
|
| 4 | [vb pp] a significant role | 18 |
|
