| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] is necessary for | 104 |
|
| 2 | that [pers pn] is necessary | 65 |
|
| 3 | that [pers pn] is for | 25 |
|
| 4 | that is necessary for | 10 |
|
