| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] be necessary [prep] | 27 |
|
| 2 | [not/n't] be necessary [prep] | 23 |
|
| 3 | not be necessary [prep] | 21 |
|
| 4 | [not/n't] be necessary for | 12 |
|
| 5 | [not/n't] be necessary for | 12 |
|
| 6 | [not/n't] be necessary at | 7 |
|
| 7 | [not/n't] be necessary at | 7 |
|
| 8 | n't be necessary [prep] | 6 |
|
| 9 | [not/n't] be necessary in | 5 |
|
| 10 | [not/n't] be necessary in | 5 |
|
