| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [not/n't] [verb] for [v-ing] | 13 |
|
| 2 | [is] not [verb] for [v-ing] | 13 |
|
| 3 | [is] [not/n't] [vb pp] for [v-ing] | 11 |
|
