| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at [num] levels | 42 |
|
| 2 | be [verb] at [num] levels | 42 |
|
| 3 | [be] [verb] at [num] levels | 19 |
|
| 4 | be [verb] at [num] levels | 19 |
|
| 5 | [was/were] [verb] at [num] levels | 7 |
|
| 6 | [am/are] [verb] at [num] levels | 7 |
|
| 7 | [noun] [verb] at [num] levels | 7 |
|
| 8 | is [verb] at [num] levels | 7 |
|
| 9 | [is] [verb] at [num] levels | 7 |
|
| 10 | are [verb] at [num] levels | 6 |
|
| 11 | [verb] [noun] at [num] levels | 12 |
|
| 12 | [verb] [noun pl] at [num] levels | 6 |
|
| 13 | [verb] [noun sg] at [num] levels | 6 |
|
| 14 | [verb] emission at [num] levels | 5 |
|
| 15 | [verb] emissions at [num] levels | 5 |
|
| 16 | [verb] at [num] [adj] levels | 12 |
|
| 17 | [verb] at [num] [adj] levels | 12 |
|
| 18 | [verb] at [num] levels [prep] | 16 |
|
| 19 | [verb] at [num] levels [prep] | 16 |
|
| 20 | [verb] at [num] levels of | 7 |
|
| 21 | [verb] at [num] levels of | 7 |
|
| 22 | [verb] at [num] levels and | 5 |
|
| 23 | [verb] at [num] levels [coord] | 5 |
|
| 24 | [verb] at [num] levels and | 5 |
|
| 25 | [verb] at [num] levels [conj] | 5 |
|
