| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [not/n't] [verb] | 2063 |
|
| 2 | it [is] [v-ing] [verb] | 874 |
|
| 3 | it [is] [not/n't] [v-ing] | 780 |
|
| 4 | [is] [not/n't] [v-ing] [verb] | 569 |
|
