| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [noun] [prep] | 5162 |
|
| 2 | at [art] [noun pl] [prep] | 2586 |
|
| 3 | at [art] [noun pl] [prep] | 2586 |
|
| 4 | [prep] a [noun pl] [prep] | 107 |
|
| 5 | at a [noun pl] [prep] | 9 |
|
| 6 | at a [noun pl] [prep] | 7 |
|
