| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [not/n't] [adv] a | 621 |
|
| 2 | which [was/were] [not/n't] [adv] | 240 |
|
| 3 | which [was/were] [adv] a | 195 |
|
| 4 | which [was/were] [not/n't] a | 41 |
|
