| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] level | 904 |
|
| 2 | at every [noun] | 731 |
|
| 3 | at every [noun sg] | 725 |
|
| 4 | [prep] every level | 126 |
|
| 5 | at every level | 115 |
|
