| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [v-ing] at | 2095 |
|
| 2 | [subord] [adv] [v-ing] | 2014 |
|
| 3 | [subord] [v-ing] at | 380 |
|
| 4 | [subord] [adv] at | 231 |
|
