| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] | 38935 |
|
| 2 | it is [adj] | 34164 |
|
| 3 | it [be] clear | 2641 |
|
| 4 | it be clear | 2641 |
|
| 5 | [pron] is clear | 1950 |
|
| 6 | it [is] clear | 1904 |
|
| 7 | it is clear | 1773 |
|
