| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] for several | 12 |
|
| 2 | [not/n't] [vb infin] for several | 7 |
|
| 3 | [not/n't] [vb pp] for several | 7 |
|
| 4 | n't [verb] for several | 5 |
|
