| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be at a [adj -er] [noun sg] | 9 |
|
| 2 | be at [art] lower [noun sg] | 6 |
|
| 3 | be at [art] [adj -er] level | 5 |
|
| 4 | be at the [adj -er] [noun sg] | 5 |
|
