| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while [verb] to | 131 |
|
| 2 | while [v-ing] to | 115 |
|
| 3 | [conj] appearing to | 13 |
|
| 4 | while appearing [prep] | 12 |
|
| 5 | while appearing [prep] | 12 |
|
| 6 | while appear to | 6 |
|
| 7 | while appearing to | 6 |
|
