| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [vb pp] [prep] two | 259 |
|
| 2 | [vb pp] [prep] two year | 223 |
|
| 3 | [been] [vb pp] [prep] year | 54 |
|
| 4 | [been] [vb pp] two year | 15 |
|
