| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at [adj] levels of | 60 |
|
| 2 | [vb -s] at [adj] [noun] of | 49 |
|
| 3 | [vb -s] [prep] [adj] levels of | 21 |
|
| 4 | [vb -s] [prep] [adj] levels of | 21 |
|
| 5 | [vb -s] at [adj] [noun pl] of | 21 |
|
| 6 | [vb -s] at [adj] levels [prep] | 10 |
|
| 7 | [vb -s] at [adj] level of | 8 |
|
| 8 | [vb -s] at [adj] levels of | 7 |
|
