| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [not/n't] a | 130 |
|
| 2 | [vb past] not a | 98 |
|
| 3 | [vb past] n't a | 91 |
|
| 4 | said [not/n't] a | 8 |
|
| 5 | did [not/n't] a | 5 |
|
