| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [vb pp] [art] crucial role | 6 |
|
| 2 | has [vb pp] a crucial role | 6 |
|
| 3 | has played [art] crucial role | 6 |
|
| 4 | has [vb pp] a crucial role | 6 |
|
