| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been an [adj] | 776 |
|
| 2 | [conj] have been [adj] | 535 |
|
| 3 | [conj] have an [adj] | 276 |
|
| 4 | [conj] have been an | 24 |
|
