| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] is [verb] on | 18 |
|
| 2 | be [verb] [is] [vb pp] on | 15 |
|
| 3 | be [vb pp] [is] [verb] on | 12 |
|
| 4 | be [v-ing] [is] [verb] on | 6 |
|
| 5 | be [verb] [is] [verb] on | 5 |
|
