| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [noun prp] for | 12 |
|
| 2 | [vb past] been [v-ing] [noun prp] for | 5 |
|
| 3 | had been [v-ing] [noun prp] for | 5 |
|
