| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [v-ing] on [adj] | 5 |
|
| 2 | it is [v-ing] on [art] [adj] | 6 |
|
| 3 | it is [v-ing] on [art] [adj] | 6 |
|
