| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] he [verb] | 1946 |
|
| 2 | while he [verb] | 984 |
|
| 3 | while [v-ing] [verb] | 338 |
|
| 4 | while [v-ing] he | 28 |
|
