| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [verb] [prep] two | 60 |
|
| 2 | [vb base] been [verb] [prep] years | 48 |
|
| 3 | been [verb] [prep] two years | 39 |
|
| 4 | [vb base] [verb] [prep] two years | 8 |
|
