| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adj] for us | 130 |
|
| 2 | it [is] necessary for [pron] | 41 |
|
| 3 | it [is] necessary for [pers pn] | 31 |
|
| 4 | it [be] necessary for us | 13 |
|
| 5 | it [is] necessary for we | 11 |
|
| 6 | it [is] necessary [prep] us | 11 |
|
| 7 | it [is] necessary for us | 11 |
|
| 8 | [pron] [is] necessary for us | 11 |
|
| 9 | it [is] necessary [prep] us | 11 |
|
