| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [to-vb] the [adj] level | 15 |
|
| 2 | [vb pp] [to-vb] the [adj] level | 14 |
|
| 3 | [vb pp] [to-vb] the [adj] levels | 6 |
|
| 4 | [vb pp] [to-vb] the high level | 5 |
|
| 5 | used [to-vb] the [adj] level | 5 |
|
