| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for [det] years | 16 |
|
| 2 | have been [vb pp] for [num] years | 14 |
|
| 3 | have been [vb pp] for many years | 12 |
|
| 4 | have been [vb pp] for many years | 12 |
|
| 5 | have been known for [adj] years | 7 |
|
| 6 | have been [vb pp] for two years | 6 |
|
| 7 | have been [vb pp] for two years | 6 |
|
