| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] two | 221 |
|
| 2 | have been [vb pp] [prep] years | 38 |
|
| 3 | been [vb pp] [prep] two years | 27 |
|
| 4 | have [vb pp] [prep] two years | 23 |
|
| 5 | have been [vb pp] two years | 15 |
|
