| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adj] to [be] clear | 20 |
|
| 2 | it be [adj] [prep] [be] clear | 20 |
|
| 3 | it [be] [adj] [prep] [be] clear | 20 |
|
| 4 | it [be] [adj] [prep] be clear | 20 |
|
| 5 | it [is] [adj] [prep] [be] clear | 19 |
|
| 6 | it [be] important [prep] [be] clear | 17 |
|
| 7 | it is [adj] [prep] [be] clear | 17 |
|
