| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [prep] [num] | 252 |
|
| 2 | have been [num] years | 119 |
|
| 3 | have [prep] [num] years | 31 |
|
| 4 | have been [prep] years | 27 |
|
| 5 | been [prep] [num] years | 22 |
|
