| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] a | 5419 |
|
| 2 | [vb -s] been [verb] [prep] a | 1955 |
|
| 3 | [vb -s] have been [verb] [prep] | 273 |
|
| 4 | [vb -s] have [verb] [prep] a | 59 |
|
| 5 | [vb -s] have been [verb] a | 6 |
|
