| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [vb pp] [prep] | 16056 |
|
| 2 | [been] [vb pp] [prep] a | 5754 |
|
| 3 | has [vb pp] [prep] a | 1616 |
|
| 4 | has [been] [vb pp] a | 372 |
|
| 5 | has [been] [prep] a | 130 |
|
