| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been for [det] years | 36 |
|
| 2 | been for many years | 25 |
|
| 3 | been for many years | 25 |
|
| 4 | been for [num] years | 17 |
|
| 5 | been for some years | 7 |
|
| 6 | been for some years | 7 |
|
