| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb -s] a key role [prep] | 18 |
|
| 2 | [noun sg] [vb -s] a key role [prep] | 15 |
|
| 3 | [adv] [vb -s] a key role [prep] | 5 |
|
| 4 | [adv] [vb -s] a key role [prep] | 5 |
|
| 5 | [vb -s] play a key role [prep] | 6 |
|
| 6 | [vb -s] [verb] a key role [prep] | 6 |
|
| 7 | [vb -s] [vb pp] a key role [prep] | 5 |
|
| 8 | [vb -s] played a key role [prep] | 5 |
|
| 9 | [vb -s] a key role play [prep] | 7 |
|
| 10 | [vb -s] a key role to play [prep] | 7 |
|
| 11 | [vb -s] a key role [to-vb] [prep] | 7 |
|
| 12 | [vb -s] a key role [verb] [prep] | 7 |
|
| 13 | [vb -s] a key role [prep] the | 9 |
|
| 14 | [vb -s] a key role [prep] [adj] | 9 |
|
| 15 | [vb -s] a key role [prep] [art] | 9 |
|
| 16 | [vb -s] a key role [prep] the | 9 |
|
| 17 | [vb -s] a key role [prep] [art] | 9 |
|
| 18 | [vb -s] a key role [prep] [v-ing] | 8 |
|
| 19 | [vb -s] a key role [prep] [verb] | 8 |
|
| 20 | [vb -s] a key role [prep] [adj] | 5 |
|
