| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a few year | 584 |
|
| 2 | [vb past] [prep] a few | 267 |
|
| 3 | [vb past] a few year | 63 |
|
| 4 | [vb past] [prep] a year | 50 |
|
