| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] played a key [noun sg] | 6 |
|
| 2 | [vb -s] played a key role | 6 |
|
| 3 | has played a key [noun] | 6 |
|
| 4 | [vb -s] played a key role | 6 |
|
