| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [vb pp] | 103064 |
|
| 2 | have [vb pp] a | 43317 |
|
| 3 | have [been] a | 11974 |
|
| 4 | [been] [vb pp] a | 1485 |
|
