| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [prep] the | 2569 |
|
| 2 | [is] [v-ing] [prep] the | 2566 |
|
| 3 | [be] [v-ing] at the | 1743 |
|
| 4 | [is] [verb] at the | 960 |
|
| 5 | [is] [v-ing] at [art] | 332 |
|
| 6 | [is] [v-ing] at the | 226 |
|
