| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it [is] not [verb] | 22 |
|
| 2 | when it is [not/n't] [verb] | 14 |
|
| 3 | when it [is] [not/n't] [vb pp] | 12 |
|
| 4 | when it [is] [not/n't] [v-ing] | 11 |
|
| 5 | when it 's [not/n't] [verb] | 10 |
|
