| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] on a | 104 |
|
| 2 | [pers pn] has [been] [verb] on | 64 |
|
| 3 | [pers pn] has [been] [verb] a | 56 |
|
| 4 | [pers pn] has [verb] on a | 19 |
|
