| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] a major role in | 7 |
|
| 2 | [vb past] [verb] a major role [prep] | 7 |
|
| 3 | [vb past] [verb] a major role [prep] | 7 |
|
| 4 | [vb past] [verb] a major role in | 7 |
|
