| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [v-ing] [noun] [prep] [noun] | 15 |
|
| 2 | it is [v-ing] [noun] [prep] [noun sg] | 10 |
|
| 3 | it is [v-ing] [noun pl] [prep] [noun] | 8 |
|
| 4 | it is [v-ing] [noun sg] [prep] [noun] | 6 |
|
