| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] played a key role [prep] | 18 |
|
| 2 | [pron] played a key role [prep] | 14 |
|
| 3 | [noun sg] played a key role [prep] | 10 |
|
| 4 | [pers pn] played a key role [prep] | 8 |
|
| 5 | [Wh pn] played a key role [prep] | 6 |
|
| 6 | he played a key role [prep] | 6 |
|
| 7 | he played a key role [prep] | 6 |
|
| 8 | who played a key role [prep] | 6 |
|
| 9 | who played a key role [prep] | 6 |
|
| 10 | played a key role [prep] [v-ing] | 20 |
|
| 11 | played a key role [prep] [verb] | 20 |
|
| 12 | played a key role [prep] the | 10 |
|
| 13 | played a key role [prep] the | 10 |
|
| 14 | played a key role [prep] [art] | 10 |
|
| 15 | played a key role [prep] [art] | 10 |
|
