| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] at least [adj] [noun] | 172 |
|
| 2 | [to-vb] at least [num] [noun] | 138 |
|
| 3 | [verb] at least 20 [noun] | 24 |
|
| 4 | [to-vb] at [adv] 20 [noun] | 8 |
|
| 5 | [to-vb] at least 20 [noun] | 8 |
|
| 6 | [to-vb] [prep] least 20 [noun] | 8 |
|
| 7 | [to-vb] at least 20 [noun] | 8 |
|
| 8 | [to-vb] [prep] least 20 [noun] | 8 |
|
