| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adj] years | 28 |
|
| 2 | [modal v] have [been] [adj] years | 28 |
|
| 3 | [vb mod] have [be] [adj] years | 28 |
|
| 4 | [modal v] have be [adj] years | 28 |
|
| 5 | [modal v] have [be] [num] years | 22 |
|
| 6 | would have [be] [adj] years | 17 |
|
| 7 | would have [be] [adj] years | 15 |
|
| 8 | may have [be] [adj] years | 5 |
|
| 9 | may have [be] [adj] years | 5 |
|
