| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] at the [adj] level | 19 |
|
| 2 | is [verb] at the [adj] level | 17 |
|
| 3 | is [verb] at the level [prep] | 6 |
|
| 4 | is [verb] at the level [prep] | 6 |
|
| 5 | is [verb] at the level of | 5 |
|
| 6 | is [verb] at the level of | 5 |
|
