| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [noun] [noun prp] have been [v-ing] | 13 |
|
| 2 | of [noun prp] [noun prp] have been [v-ing] | 6 |
|
| 3 | of [noun sg] [noun prp] have been [v-ing] | 6 |
|
| 4 | of [noun] [noun prp] had been [v-ing] | 6 |
|
