| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [vb pp] for many year | 15 |
|
| 2 | [vb base] been [vb pp] for many year | 15 |
|
| 3 | [vb base] [been] [vb pp] for many years | 15 |
|
| 4 | have [been] [vb pp] for many year | 12 |
|
