| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [subord] [v-ing] | 54 |
|
| 2 | [conj] have been [vb pp] [subord] | 26 |
|
| 3 | [conj] have been [vb pp] [v-ing] | 5 |
|
