| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at [num] | 743 |
|
| 2 | at [num] [n mass] | 627 |
|
| 3 | [v-ing] [num] [n mass] | 613 |
|
| 4 | [v-ing] at [n mass] | 286 |
|
