| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a [noun sg] | 4198 |
|
| 2 | occur [prep] a [noun sg] | 364 |
|
| 3 | occur [prep] a [noun sg] | 364 |
|
| 4 | occur at [art] [noun sg] | 190 |
|
| 5 | occur at a [noun] | 59 |
|
| 6 | occur at a [noun sg] | 58 |
|
