| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] not [verb] | 1885 |
|
| 2 | it [is] not [v-ing] | 681 |
|
| 3 | it [is] [adv] happening | 42 |
|
| 4 | it [is] not happening | 17 |
|
| 5 | it [is] [not/n't] happening | 17 |
|
| 6 | [pron] [is] not happening | 15 |
|
| 7 | it [be] not happening | 13 |
|
| 8 | it [is] not happen | 13 |
|
