| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] important [prep] | 537 |
|
| 2 | [vb base] it [be] [prep] | 467 |
|
| 3 | [vb base] it [be] important | 159 |
|
| 4 | [vb base] [be] important [prep] | 16 |
|
