| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] on | 55 |
|
| 2 | it is [vb pp] on | 38 |
|
| 3 | it is [v-ing] on | 11 |
|
| 4 | it is carry on | 11 |
|
| 5 | it is carried on | 8 |
|
| 6 | it is write on | 5 |
|
| 7 | it is written on | 5 |
|
| 8 | it is [to-vb] on | 5 |
|
