| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [noun prp] which is [adv] | 8 |
|
| 2 | at [noun prp] [Wh det] is [adv] | 8 |
|
| 3 | at [noun prp] [Wh det] is [adv] | 6 |
|
