| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for six months | 13 |
|
| 2 | [verb] been [verb] for six months | 13 |
|
| 3 | [vb -s] been [verb] for six months | 8 |
|
| 4 | has been [verb] for six months | 8 |
|
| 5 | been [verb] for six months [prep] | 5 |
|
| 6 | been [verb] for six months [prep] | 5 |
|
