| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] year | 120 |
|
| 2 | have been [verb] [prep] twenty | 16 |
|
| 3 | been [verb] [prep] twenty year | 10 |
|
| 4 | have [verb] [prep] twenty year | 8 |
|
