| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] been for [num] years | 5 |
|
| 2 | [verb] n't been for [num] years | 5 |
|
| 3 | [verb] [not/n't] been for [num] years | 5 |
|
| 4 | [verb] not been for [num] years | 5 |
|
