| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [vb pp] [prep] many years | 31 |
|
| 2 | have [vb pp] [prep] many years | 27 |
|
| 3 | [vb base] [vb pp] for many years | 22 |
|
| 4 | [vb base] [vb pp] over many years | 5 |
|
