| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [vb infin] if it [is] | 137 |
|
| 2 | [not/n't] [vb infin] it [is] [v-ing] | 42 |
|
| 3 | [vb infin] if it [is] [v-ing] | 9 |
|
