| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at which [noun] | 816 |
|
| 2 | [prep] which child | 143 |
|
| 3 | at [pron] child | 29 |
|
| 4 | at [Wh det] child | 11 |
|
| 5 | at which child | 10 |
|
