| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] a | 886 |
|
| 2 | they have been [verb] [prep] | 518 |
|
| 3 | they have [verb] [prep] a | 86 |
|
| 4 | they have been [verb] a | 23 |
|
| 5 | they have been [prep] a | 11 |
|
