| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] been [vb pp] [adj] year | 8 |
|
| 2 | [vb mod] have been [vb pp] [adj] year | 8 |
|
| 3 | [vb mod] have been [vb pp] [adj] year | 7 |
|
| 4 | [vb mod] [verb] been [vb pp] [adj] years | 6 |
|
