| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [verb] [conj] a [noun] | 107 |
|
| 2 | has occur [conj] [art] [noun] | 30 |
|
| 3 | [verb] occur [conj] a [noun] | 26 |
|
| 4 | have occur [conj] a [noun] | 24 |
|
| 5 | [vb -s] occur [conj] a [noun] | 22 |
|
