| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is necessary for [pers pn] | 23 |
|
| 2 | it [is] necessary for us | 11 |
|
| 3 | it [is] necessary for me | 9 |
|
| 4 | it 's necessary for [pers pn] | 8 |
|
| 5 | it [is] necessary for you | 6 |
|
