| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at a | 1370 |
|
| 2 | [adv] at [noun pl] | 644 |
|
| 3 | at a [noun pl] | 202 |
|
| 4 | [adv] a [noun pl] | 196 |
|
