| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | play a central role in | 59 |
|
| 2 | [vb -s] a central role in | 17 |
|
| 3 | [vb past] a central role in | 15 |
|
| 4 | [vb pp] a central role in | 14 |
|
| 5 | played a central role in | 13 |
|
| 6 | [vb infin] a central role in | 12 |
|
| 7 | have a central role in | 11 |
|
| 8 | plays a central role in | 11 |
|
| 9 | [to-vb] a central role in | 10 |
|
| 10 | to play a central role in | 9 |
|
| 11 | played a central role in | 9 |
|
| 12 | [vb base] a central role in | 9 |
|
| 13 | play a central role in | 9 |
|
| 14 | play a central role in | 6 |
|
