| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [conj] it [verb] | 12 |
|
| 2 | is [v-ing] [conj] it [vb -s] | 11 |
|
| 3 | is [v-ing] [subord] it [verb] | 6 |
|
