| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] played a key role | 22 |
|
| 2 | [pron] played a key role | 15 |
|
| 3 | [noun sg] played a key role | 13 |
|
| 4 | [pers pn] played a key role | 9 |
|
| 5 | who played a key role | 6 |
|
| 6 | who played a key role | 6 |
|
| 7 | he played a key role | 6 |
|
| 8 | [Wh pn] played a key role | 6 |
|
| 9 | he played a key role | 6 |
|
| 10 | [noun pl] played a key role | 5 |
|
| 11 | played a key role [prep] | 37 |
|
| 12 | played a key role [prep] | 37 |
|
| 13 | played a key role in | 34 |
|
| 14 | played a key role in | 34 |
|
