| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is [adv] [v-ing] on a | 19 |
|
| 2 | it is [adv] [v-ing] [prep] a | 15 |
|
| 3 | it is [adv] [verb] on a | 10 |
|
| 4 | it is [adv] [v-ing] on [art] | 6 |
|
| 5 | it is [adv] [v-ing] on [art] | 6 |
|
| 6 | it is [adv] [v-ing] on a | 5 |
|
| 7 | it is [adv] [v-ing] on a | 5 |
|
| 8 | it [is] [adv] [v-ing] on a | 5 |
|
| 9 | it be [adv] [v-ing] on a | 5 |
|
| 10 | it [be] [adv] [v-ing] on a | 5 |
|
