| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] important [prep] us | 7 |
|
| 2 | it is [adv] important [prep] us | 7 |
|
| 3 | it is important [prep] us [verb] | 13 |
|
| 4 | it is important [prep] us [to-vb] | 13 |
|
