| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [det] years | 170 |
|
| 2 | [noun] [prep] a few years | 169 |
|
| 3 | [noun] [prep] a few [det] | 45 |
|
| 4 | [prep] a few [det] years | 16 |
|
