| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a [noun] | 4020 |
|
| 2 | [verb] a [noun] [unc] | 3218 |
|
| 3 | [verb] at [noun] [unc] | 1529 |
|
| 4 | at a [noun] [unc] | 292 |
|
| 5 | [verb] at a [unc] | 9 |
|
