| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] while [v-ing] [prep] [art] | 26 |
|
| 2 | [adv] while [verb] [prep] [art] | 20 |
|
| 3 | [adv] while [verb] [prep] the | 19 |
|
| 4 | [adv] while [verb] [prep] a | 8 |
|
| 5 | [adv prt] while [verb] [prep] [art] | 8 |
|
