| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not [vb pp] in [adj] years | 6 |
|
| 2 | have not [vb pp] in [adj] years | 6 |
|
| 3 | not be [vb pp] in [adj] years | 7 |
|
| 4 | not [be] [vb pp] in [adj] years | 7 |
|
| 5 | not [been] [vb pp] in [adj] years | 5 |
|
| 6 | not been [vb pp] in [adj] years | 5 |
|
