| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a few years ' | 27 |
|
| 2 | [prep] a few years ['s] | 27 |
|
| 3 | in a few years ['s] | 20 |
|
| 4 | in a few years ['s] | 20 |
|
