| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [vb pp] for years | 16 |
|
| 2 | [noun sg] have been [vb pp] for year | 9 |
|
| 3 | [noun] have been [vb pp] for year | 8 |
|
| 4 | [noun pl] have been [vb pp] for year | 5 |
|
| 5 | [noun] had been [vb pp] for year | 5 |
|
| 6 | [noun] have been used for year | 5 |
|
