| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] at least [det] | 67 |
|
| 2 | [v-ing] [prep] at least [adj] | 57 |
|
| 3 | [v-ing] [prep] at [adv] [det] | 9 |
|
| 4 | [v-ing] [prep] [prep] least [det] | 9 |
|
