| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [prep] [det] years | 38 |
|
| 2 | [been] for [det] years | 36 |
|
| 3 | [been] [prep] many years | 25 |
|
| 4 | [been] [prep] some years | 7 |
|
