| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [art] | 23753 |
|
| 2 | be [v-ing] [prep] [art] | 23744 |
|
| 3 | be [verb] at [art] | 10076 |
|
| 4 | be [v-ing] at [art] | 2298 |
|
| 5 | [be] [v-ing] at [art] | 2298 |
|
| 6 | be [v-ing] at [art] | 2298 |
|
