| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [art] key role | 216 |
|
| 2 | has [art] [adj] role | 172 |
|
| 3 | has [art] [adj] role | 163 |
|
| 4 | [vb -s] [art] key role | 42 |
|
| 5 | have [art] key role | 41 |
|
| 6 | has [art] key [noun] | 20 |
|
| 7 | has [art] key role | 15 |
|
| 8 | has [art] key role | 15 |
|
