| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [noun prp] in a [noun] | 43 |
|
| 2 | at [noun prp] in a [noun sg] | 41 |
|
| 3 | at [noun prp] in a [noun] | 35 |
|
| 4 | at [noun prp] in an [noun] | 8 |
|
