| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] | 7196 |
|
| 2 | not [v-ing] [prep] | 3443 |
|
| 3 | not [be] [v-ing] | 769 |
|
| 4 | not [be] [prep] | 710 |
|
