| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at least [adv] a [noun] | 166 |
|
| 2 | [to-vb] at [adv] a [noun] | 33 |
|
| 3 | [to-vb] at least a [noun] | 33 |
|
| 4 | [to-vb] at least [adv] a | 7 |
|
