| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [vb pp] [art] | 859 |
|
| 2 | this has [been] [vb pp] | 562 |
|
| 3 | this has [been] [art] | 269 |
|
| 4 | this has [vb pp] [art] | 236 |
|
