| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not a [adj] | 5226 |
|
| 2 | not a [adj] | 5049 |
|
| 3 | [adv] a necessary | 79 |
|
| 4 | not [art] necessary | 35 |
|
| 5 | not [art] necessary | 35 |
|
| 6 | [not/n't] a necessary | 34 |
|
| 7 | not a necessary | 34 |
|
| 8 | not a necessary | 31 |
|
| 9 | not a necessary | 31 |
|
