| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [pos pn] [adj -est] [prep] [verb] | 6 |
|
| 2 | at [pron] [adj -est] [prep] [v-ing] | 6 |
|
| 3 | at [pron] best [prep] [verb] | 5 |
|
