| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] [prep] [adj] levels | 84 |
|
| 2 | [n mass] at [adj] levels | 59 |
|
| 3 | [n mass] at [adj] levels | 59 |
|
| 4 | [n mass] [prep] [det] levels | 51 |
|
| 5 | [n mass] [prep] all levels | 50 |
|
| 6 | [n mass] [prep] all levels | 50 |
|
| 7 | people [prep] [adj] levels | 37 |
|
| 8 | staff [prep] [adj] levels | 31 |
|
| 9 | [n mass] [prep] [adj] levels | 23 |
|
| 10 | [n mass] [prep] different levels | 8 |
|
| 11 | [n mass] [prep] different levels | 8 |
|
| 12 | [n mass] of [adj] levels | 7 |
|
| 13 | [n mass] with [adj] levels | 7 |
|
| 14 | [n mass] of [adj] levels | 7 |
|
| 15 | [n mass] with [adj] levels | 7 |
|
| 16 | [n mass] [prep] [adj -er] levels | 6 |
|
| 17 | [n mass] [prep] high levels | 6 |
|
