| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which has [been] [vb pp] [prep] | 783 |
|
| 2 | has [been] [vb pp] [prep] [adv] | 322 |
|
| 3 | which has [been] [vb pp] [adv] | 182 |
|
| 4 | which has [vb pp] [prep] [adv] | 25 |
|
