| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] been [adj] years | 30 |
|
| 2 | [modal v] [vb infin] been [adj] years | 30 |
|
| 3 | [modal v] have been [adj] years | 30 |
|
| 4 | [modal v] have been [adj] years | 28 |
|
| 5 | [modal v] [verb] been [num] years | 23 |
|
| 6 | would [verb] been [adj] years | 17 |
|
| 7 | would [verb] been [adj] years | 15 |
|
| 8 | may [verb] been [adj] years | 5 |
|
| 9 | may [verb] been [adj] years | 5 |
|
