| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [art] [adj] level | 25 |
|
| 2 | [vb past] at a [adj] level | 22 |
|
| 3 | [vb past] at the [adj] level | 9 |
|
| 4 | [vb past] at [art] high level | 6 |
|
| 5 | remained at [art] [adj] level | 6 |
|
| 6 | [vb past] at [art] high level | 5 |
|
| 7 | continued at [art] [adj] level | 5 |
|
