| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for many [noun] | 16 |
|
| 2 | have been [vb pp] for many [noun pl] | 16 |
|
| 3 | have been [vb pp] for many year | 12 |
|
| 4 | have been [vb pp] for many years | 12 |
|
