| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] [prep] a few years | 7 |
|
| 2 | [verb] [vb pp] [prep] [art] few years | 7 |
|
| 3 | [verb] [vb pp] [prep] a few years | 7 |
|
| 4 | have [vb pp] [prep] [art] few years | 6 |
|
