| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have been [verb] [prep] many | 12 |
|
| 2 | they have been [vb pp] [prep] many | 11 |
|
| 3 | they have been [verb] for many | 7 |
|
| 4 | they have been [verb] [prep] many | 7 |
|
