| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at least a [noun] [prep] | 239 |
|
| 2 | [to-vb] at a [noun] [prep] | 101 |
|
| 3 | [to-vb] at least [noun] [prep] | 40 |
|
| 4 | [to-vb] at least a [noun] | 33 |
|
