| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [v-ing] at | 1428 |
|
| 2 | while [v-ing] [prep] | 1190 |
|
| 3 | while [v-ing] [prep] | 1190 |
|
| 4 | [subord] [v-ing] at | 380 |
|
| 5 | while [verb] at | 112 |
|
| 6 | while [v-ing] at | 100 |
|
| 7 | while [v-ing] at | 100 |
|
