| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] [v-ing] [prep] | 30 |
|
| 2 | has [been] [vb pp] [v-ing] to | 9 |
|
| 3 | has [been] [vb pp] according [prep] | 7 |
|
