| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the levels [prep] [noun] [vb pp] | 22 |
|
| 2 | the levels of [noun] [vb pp] | 22 |
|
| 3 | the levels [prep] [noun] [vb pp] | 22 |
|
| 4 | the levels of [noun] [vb pp] | 22 |
|
| 5 | the levels [prep] [noun sg] [vb pp] | 19 |
|
