| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] at least [noun] | 60 |
|
| 2 | [modal v] [verb] [to-vb] at [noun] | 56 |
|
| 3 | [modal v] [verb] [to-vb] at least | 45 |
|
| 4 | [verb] [to-vb] at least [noun] | 36 |
|
