| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adj] when [art] [noun sg] | 7 |
|
| 2 | at [num] when [art] [noun sg] | 7 |
|
| 3 | at [adj] when [art] [noun sg] | 7 |
|
| 4 | at [adj] when the [noun sg] | 5 |
|
| 5 | at [adj] when the [noun sg] | 5 |
|
