| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is for [pers pn] [to-vb] | 45 |
|
| 2 | [pron] is necessary for [pers pn] | 25 |
|
| 3 | is necessary for [pers pn] [to-vb] | 25 |
|
| 4 | [pron] necessary for [pers pn] [to-vb] | 9 |
|
