| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] not | 21203 |
|
| 2 | it [is] [v-ing] | 7295 |
|
| 3 | [is] not [v-ing] | 2803 |
|
| 4 | it not [v-ing] | 18 |
|
