| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [noun] when the | 365 |
|
| 2 | [noun sg] at a [noun] when | 278 |
|
| 3 | [noun sg] at a [noun] the | 13 |
|
| 4 | [noun sg] at [noun] when the | 12 |
|
