| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [be] [verb] at a low | 5 |
|
| 2 | [noun pl] be [verb] at a low | 5 |
|
| 3 | [noun pl] [verb] at a low [noun] | 7 |
|
| 4 | [noun pl] [verb] at a low [noun sg] | 7 |
|
