| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have [vb pp] a key role | 10 |
|
| 2 | [pron] have [vb pp] a key role | 7 |
|
| 3 | who have [vb pp] a key role | 5 |
|
| 4 | who have [vb pp] a key role | 5 |
|
| 5 | [Wh pn] have [vb pp] a key role | 5 |
|
| 6 | have [vb pp] a key role in | 20 |
|
| 7 | have [vb pp] a key role in | 20 |
|
| 8 | have [vb pp] a key role [prep] | 20 |
|
| 9 | have [vb pp] a key role [prep] | 20 |
|
