| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj] [noun sg] | 9454 |
|
| 2 | [prep] a low [noun sg] | 1368 |
|
| 3 | [prep] a low [noun sg] | 1368 |
|
| 4 | at [art] low [noun sg] | 534 |
|
| 5 | at a low [noun] | 297 |
|
| 6 | at a low [noun sg] | 295 |
|
