| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not be [v-ing] at | 23 |
|
| 2 | not [be] [v-ing] at | 17 |
|
| 3 | not be [v-ing] at | 17 |
|
| 4 | not [been] [v-ing] at | 6 |
|
| 5 | not been [v-ing] at | 6 |
|
