| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [num] years | 121 |
|
| 2 | [been] five years | 15 |
|
| 3 | [been] three years | 13 |
|
| 4 | [been] ten years | 11 |
|
| 5 | [been] four years | 9 |
|
| 6 | [been] two years | 6 |
|
| 7 | [been] thirty years | 5 |
|
