| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] a key [noun sg] | 38 |
|
| 2 | have [vb pp] a key [noun] | 38 |
|
| 3 | [verb] played a key [noun] | 25 |
|
| 4 | [verb] [vb pp] a key role | 23 |
|
| 5 | [verb] [vb pp] a key role | 23 |
|
| 6 | has [vb pp] a key [noun] | 16 |
|
| 7 | [vb -s] [vb pp] a key [noun] | 16 |
|
| 8 | had [vb pp] a key [noun] | 12 |
|
| 9 | [vb past] [vb pp] a key [noun] | 12 |
|
| 10 | [verb] become a key [noun] | 8 |
|
| 11 | [vb base] [vb pp] a key [noun] | 6 |
|
| 12 | have [vb pp] a key [noun] | 5 |
|
