| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is [verb] at [noun] | 54 |
|
| 2 | is [verb] at [v-ing] [noun] | 38 |
|
| 3 | which is [verb] at [v-ing] | 15 |
|
| 4 | which [verb] at [v-ing] [noun] | 6 |
|
