| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] [noun] | 2200 |
|
| 2 | at [adv] [noun] | 2105 |
|
| 3 | at least [noun] | 1101 |
|
| 4 | [prep] least [noun] | 1101 |
|
