| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is not for [pers pn] | 49 |
|
| 2 | it is not necessary for | 40 |
|
| 3 | it is necessary for [pers pn] | 23 |
|
| 4 | is not necessary for [pers pn] | 10 |
|
