| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] [adv prt] on a | 7 |
|
| 2 | has [been] [verb] [adv prt] on a | 7 |
|
| 3 | has [been] [vb pp] [adv prt] on a | 7 |
|
