| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [verb] at [det] | 11 |
|
| 2 | [be] [v-ing] [prep] [verb] at [det] | 11 |
|
| 3 | [v-ing] [prep] [be] [verb] at [det] | 12 |
|
| 4 | [v-ing] [prep] be [verb] at [det] | 12 |
|
| 5 | [v-ing] [prep] [be] [verb] at [det] | 11 |
|
| 6 | [v-ing] [prep] be [verb] at [det] | 11 |
|
