| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | or [prep] least [prep] a | 12 |
|
| 2 | or at [adv] [prep] a | 12 |
|
| 3 | or [prep] [adv] [prep] a | 12 |
|
| 4 | or at [adv] [prep] a | 12 |
|
