| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at [art] [noun] of levels | 17 |
|
| 2 | [noun sg] at [art] [noun] of levels | 12 |
|
| 3 | [verb] at [art] [noun] of levels | 10 |
|
| 4 | at [art] [noun] of [adj] levels | 8 |
|
| 5 | at [art] [noun] of [adj] levels | 8 |
|
| 6 | at [art] [noun] of different levels | 6 |
|
| 7 | at [art] [noun] of different levels | 6 |
|
| 8 | at [art] [noun] of levels [prep] | 8 |
|
| 9 | at [art] [noun] of levels [prep] | 8 |
|
