| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [verb] at [art] | 838 |
|
| 2 | [prep] be [v-ing] [prep] [art] | 728 |
|
| 3 | [prep] be [v-ing] [prep] [art] | 728 |
|
| 4 | [prep] [be] [v-ing] at [art] | 66 |
|
| 5 | [prep] be [v-ing] at [art] | 66 |
|
| 6 | [prep] be [v-ing] at [art] | 66 |
|
| 7 | [prep] be [v-ing] at [art] | 66 |
|
| 8 | [prep] be [v-ing] at [art] | 66 |
|
| 9 | [prep] [be] [v-ing] at [art] | 66 |
|
