| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [vb pp] [art] | 859 |
|
| 2 | what has [been] [vb pp] | 547 |
|
| 3 | what has [been] [art] | 61 |
|
| 4 | what has [vb pp] [art] | 54 |
|
