| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [not/n't] [v-ing] | 3504 |
|
| 2 | [is] [not/n't] always | 865 |
|
| 3 | [is] always [v-ing] | 404 |
|
| 4 | [not/n't] always [v-ing] | 28 |
|
