| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adj] [prep] us | 160 |
|
| 2 | it [is] [adj] [prep] us | 147 |
|
| 3 | it [is] necessary [prep] [pron] | 44 |
|
| 4 | it [is] necessary [prep] [pers pn] | 31 |
|
| 5 | it [be] necessary [prep] us | 13 |
|
| 6 | it [is] necessary [prep] us | 11 |
|
| 7 | it [is] necessary [prep] us | 11 |
|
| 8 | it [is] necessary [prep] us | 11 |
|
| 9 | [pers pn] [is] necessary [prep] us | 11 |
|
| 10 | it [is] necessary [prep] we | 11 |
|
| 11 | [pron] [is] necessary [prep] us | 11 |
|
