| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a few years [prep] | 80 |
|
| 2 | [prep] a few [prep] the | 59 |
|
| 3 | a few years [prep] the | 39 |
|
| 4 | [prep] a few years the | 24 |
|
