| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [prep] a few years | 25 |
|
| 2 | at [noun] [prep] a few [noun pl] | 13 |
|
| 3 | at [noun] [prep] a few [noun] | 13 |
|
| 4 | at [noun] [prep] a few years | 7 |
|
| 5 | at [noun] [prep] a [adj] years | 7 |
|
| 6 | at [noun] [prep] a few year | 7 |
|
| 7 | at [noun] [prep] a [det] years | 7 |
|
| 8 | at [noun] [prep] [art] few years | 7 |
|
| 9 | at [noun] [prep] a few years | 7 |
|
