| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] while [verb] [art] | 9 |
|
| 2 | [v-ing] while [v-ing] [art] | 9 |
|
| 3 | [v-ing] while [verb] the | 6 |
|
| 4 | [v-ing] while [verb] the | 6 |
|
