| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while [prep] the [det] [noun] [verb] | 224 |
|
| 2 | while [prep] the [det] [noun] [v-ing] | 218 |
|
| 3 | [conj] [prep] the [det] [noun] preserving | 6 |
|
| 4 | while [prep] the [adj] [noun] preserving | 6 |
|
| 5 | while [prep] [art] [det] [noun] preserving | 6 |
|
| 6 | while [prep] the [det] [noun] preserve | 6 |
|
| 7 | while [prep] the [det] [noun] preserving | 6 |
|
