| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [noun] [conj] | 10976 |
|
| 2 | [prep] [noun] when | 6690 |
|
| 3 | [prep] [noun] when | 6687 |
|
| 4 | at [noun] [subord] | 1822 |
|
| 5 | at [noun] when | 354 |
|
| 6 | at [noun] when | 354 |
|
