| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been [vb pp] [prep] [num] [noun] | 28 |
|
| 2 | not been [verb] [prep] [num] [noun pl] | 26 |
|
| 3 | not been [verb] for [num] [noun] | 17 |
|
| 4 | not been [verb] [prep] [num] year | 10 |
|
| 5 | not been [verb] [prep] [num] years | 10 |
|
| 6 | not been [verb] within [num] [noun] | 6 |
|
| 7 | not been seen [prep] [num] [noun] | 5 |
|
| 8 | not been see [prep] [num] [noun] | 5 |
|
