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