| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been a long | 11 |
|
| 2 | [modal v] have [been] a long | 11 |
|
| 3 | [vb mod] have [been] a long | 11 |
|
| 4 | would have [been] a long | 6 |
|
| 5 | would have [been] a long | 6 |
|
