| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it [verb] obvious that | 14 |
|
| 2 | when it [verb] obvious that | 14 |
|
| 3 | when it become obvious that | 14 |
|
| 4 | when it [verb] obvious that | 14 |
|
| 5 | when it became obvious that | 12 |
|
| 6 | when it [vb past] obvious that | 12 |
|
