| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been for many years | 23 |
|
| 2 | [vb -s] been for many years | 10 |
|
| 3 | has been for many years | 10 |
|
| 4 | had been for many years | 7 |
|
| 5 | [vb past] been for many years | 7 |
|
| 6 | [vb base] been for many years | 5 |
|
| 7 | have been for many years | 5 |
|
