| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] [adv] [prep] a | 174 |
|
| 2 | has [been] [verb] [adv] on [art] | 59 |
|
| 3 | has [been] [verb] [adv] on [art] | 59 |
|
| 4 | [verb] [been] [verb] [adv] on a | 47 |
|
| 5 | have [been] [verb] [adv] on a | 47 |
|
| 6 | [vb -s] [been] [verb] [adv] on a | 10 |
|
| 7 | has [been] [verb] [adv] on a | 10 |
|
| 8 | has [be] [verb] [adv] on a | 10 |
|
