| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [prep] [det] | 146 |
|
| 2 | have [been] [prep] a | 123 |
|
| 3 | [been] [prep] [det] a | 41 |
|
| 4 | have [been] [det] a | 19 |
|
