| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been [v-ing] on [noun] | 9 |
|
| 2 | [noun pl] have been [v-ing] on [noun sg] | 5 |
|
| 3 | [noun pl] have been [v-ing] on [noun pl] | 5 |
|
