| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] at [adj] levels | 49 |
|
| 2 | be [verb] at [adj] levels | 22 |
|
| 3 | be [verb] at different levels | 11 |
|
| 4 | be express at [adj] levels | 8 |
|
| 5 | be expressed at [adj] levels | 8 |
|
| 6 | is [verb] at [adj] levels | 7 |
|
| 7 | are [verb] at [adj] levels | 7 |
|
| 8 | be [verb] at various levels | 7 |
|
| 9 | being [verb] at [adj] levels | 6 |
|
| 10 | were [verb] at [adj] levels | 5 |
|
