| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [is] for [pers pn] [verb] | 60 |
|
| 2 | [pron] [is] necessary for [pers pn] | 33 |
|
| 3 | [is] necessary for [pers pn] [verb] | 31 |
|
| 4 | [pron] necessary for [pers pn] [verb] | 9 |
|
