| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [not/n't] [v-ing] | 16927 |
|
| 2 | be [v-ing] i | 2193 |
|
| 3 | be [not/n't] i | 672 |
|
| 4 | [not/n't] [v-ing] i | 226 |
|
