| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at least [prep] the [adj] case | 6 |
|
| 2 | at least [prep] the case of | 14 |
|
| 3 | at least [prep] the case [prep] | 14 |
|
| 4 | at least [prep] the case of | 14 |
|
| 5 | at least [prep] the case [prep] | 14 |
|
