| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] play a major role | 9 |
|
| 2 | [vb base] [verb] a major role | 9 |
|
| 3 | [vb base] played a major role | 8 |
|
| 4 | [vb base] [vb pp] a major role | 8 |
|
| 5 | have [verb] a major role | 8 |
|
