| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been [vb pp] [prep] [det] | 206 |
|
| 2 | been [vb pp] [prep] [det] years | 91 |
|
| 3 | not [vb pp] [prep] [det] years | 15 |
|
| 4 | not been [vb pp] [prep] years | 11 |
|
