| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] years | 38 |
|
| 2 | have been [vb pp] for year | 28 |
|
| 3 | had been [vb pp] [prep] year | 13 |
|
| 4 | have been [vb pp] [prep] year | 11 |
|
| 5 | has been [vb pp] [prep] year | 9 |
|
| 6 | have been used [prep] year | 8 |
|
