| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] role to play in | 80 |
|
| 2 | an [adj] role to play in | 49 |
|
| 3 | a important role to play in | 41 |
|
| 4 | a vital role to play in | 18 |
|
| 5 | a major role to play in | 13 |
|
| 6 | a key role to play in | 12 |
|
| 7 | a crucial role to play in | 10 |
|
| 8 | a useful role to play in | 5 |
|
