| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun prp] be [v-ing] on | 24 |
|
| 2 | [noun sg] [noun prp] [was/were] [v-ing] on | 21 |
|
| 3 | [noun sg] [noun prp] was [v-ing] on | 19 |
|
