| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while it is [adj] | 188 |
|
| 2 | while it is true | 53 |
|
| 3 | while it is possible | 20 |
|
| 4 | while it is clear | 14 |
|
| 5 | while it is important | 14 |
|
| 6 | while it is easy | 8 |
|
| 7 | while it is difficult | 7 |
|
| 8 | while it is impossible | 5 |
|
