| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] at a [adj] | 89 |
|
| 2 | is [vb pp] at a [adj -er] | 12 |
|
| 3 | is aimed at a [adj] | 11 |
|
| 4 | is [vb pp] at a constant | 10 |
|
| 5 | is [vb pp] at a constant | 10 |
|
| 6 | is [vb pp] at a low | 7 |
|
| 7 | is put at a [adj] | 6 |
|
| 8 | is kept at a [adj] | 5 |
|
