| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it become obvious | 85 |
|
| 2 | it [vb past] obvious | 74 |
|
| 3 | it became obvious | 58 |
|
| 4 | it [vb -s] obvious | 50 |
|
| 5 | it seem obvious | 28 |
|
| 6 | it becomes obvious | 24 |
|
| 7 | it seems obvious | 15 |
|
| 8 | it seemed obvious | 12 |
|
| 9 | it make obvious | 5 |
|
