| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj] [noun] | 9825 |
|
| 2 | at least [adj] [noun] | 5133 |
|
| 3 | at least a [noun] | 663 |
|
| 4 | at least a [adj] | 475 |
|
| 5 | least a [adj] [noun] | 356 |
|
