| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is obvious that [adj] | 33 |
|
| 2 | is obvious that [adj] [noun sg] | 13 |
|
| 3 | it is obvious that [noun sg] | 11 |
|
| 4 | it is that [adj] [noun sg] | 8 |
|
