| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while [v-ing] [prep] [art] [noun sg] [unc] | 8 |
|
| 2 | while [verb] [prep] [art] [noun sg] [unc] | 8 |
|
| 3 | while [prep] [art] [noun sg] [unc] [noun sg] | 7 |
|
| 4 | while [prep] [art] [noun sg] [unc] [noun] | 7 |
|
