| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] not | 11151 |
|
| 2 | [was/were] not [v-ing] | 4734 |
|
| 3 | it [was/were] [v-ing] | 3333 |
|
| 4 | it not [v-ing] | 18 |
|
