| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] it [verb] | 30 |
|
| 2 | is [v-ing] it [vb -s] | 10 |
|
| 3 | is [v-ing] it [to-vb] | 9 |
|
| 4 | is [v-ing] it [v-ing] | 5 |
|
