| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be important [prep] [be] clear | 17 |
|
| 2 | it be important to [be] clear | 17 |
|
| 3 | it be important [prep] be clear | 17 |
|
| 4 | it be important to [be] clear | 17 |
|
| 5 | it be important [prep] [be] clear | 17 |
|
| 6 | it is important [prep] [be] clear | 15 |
|
