| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] n't [verb] a [adj] | 16 |
|
| 2 | [was/were] n't [v-ing] a [adj] | 15 |
|
| 3 | was n't [verb] a [adj] | 9 |
|
| 4 | were n't [verb] a [adj] | 8 |
|
