| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] at [adj] | 497 |
|
| 2 | [v-ing] at [adj] time | 133 |
|
| 3 | [prep] [v-ing] [adj] time | 128 |
|
| 4 | [prep] at [adj] time | 41 |
|
