| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it was [adj] | 23603 |
|
| 2 | it was [adj] | 17332 |
|
| 3 | it be obvious | 865 |
|
| 4 | it [be] obvious | 865 |
|
| 5 | [pron] was obvious | 414 |
|
| 6 | it [was/were] obvious | 408 |
|
| 7 | it was obvious | 404 |
|
