| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [vb pp] [prep] a | 1756 |
|
| 2 | has [been] [vb pp] [prep] [det] | 1026 |
|
| 3 | [been] [vb pp] [prep] a [det] | 44 |
|
| 4 | has [vb pp] [prep] a [det] | 13 |
|
| 5 | has [been] [vb pp] a [det] | 5 |
|
