| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] has been [v-ing] [adj] | 33 |
|
| 2 | [noun prp] had been [v-ing] [adj] | 32 |
|
| 3 | [noun prp] have been [v-ing] [adj] | 16 |
|
