| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [v-ing] [prep] [art] | 1502 |
|
| 2 | while [v-ing] [prep] [art] | 518 |
|
| 3 | [vb pp] while [v-ing] [prep] | 67 |
|
| 4 | [vb pp] while [v-ing] [art] | 43 |
|
| 5 | [vb pp] while [prep] [art] | 30 |
|
