| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [v-ing] [noun] | 155 |
|
| 2 | is [v-ing] at [noun] | 122 |
|
| 3 | it is at [noun] | 65 |
|
| 4 | it is [v-ing] at | 31 |
|
| 5 | it [v-ing] at [noun] | 7 |
|
