| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] [v-ing] | 9704 |
|
| 2 | [adv] [subord] [v-ing] | 5674 |
|
| 3 | [adv] while [verb] | 273 |
|
| 4 | [adv] while [v-ing] | 265 |
|
