| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a [det] years ' | 12 |
|
| 2 | [noun] [prep] a few years ' | 12 |
|
| 3 | [noun] [prep] a [det] years ' | 12 |
|
| 4 | [noun] in a [det] years ' | 10 |
|
