| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [vb pp] [prep] | 58901 |
|
| 2 | has [been] [vb pp] | 33309 |
|
| 3 | has [vb pp] [prep] | 16279 |
|
| 4 | has [been] [prep] | 2086 |
|
