| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been for [num] [noun pl] | 7 |
|
| 2 | n't been for [num] [noun] | 6 |
|
| 3 | not been for [num] year | 5 |
|
| 4 | not been for [num] years | 5 |
|
