| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [adj] level [prep] | 2105 |
|
| 2 | at the [adj] level | 1352 |
|
| 3 | at [adj] level [prep] | 678 |
|
| 4 | at the level [prep] | 570 |
|
| 5 | at the [adj] [prep] | 354 |
|
