| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not [adj] for [pron] [verb] | 102 |
|
| 2 | be [adv] necessary for [pron] [verb] | 23 |
|
| 3 | [be] not necessary for [pron] [verb] | 14 |
|
| 4 | be not necessary [prep] [pron] [verb] | 14 |
|
