| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [not/n't] [verb] to be so | 6 |
|
| 2 | [modal v] [not/n't] [vb infin] to be so | 6 |
|
| 3 | [modal v] not [verb] to be so | 5 |
|
