| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a few years [prep] [noun sg] | 20 |
|
| 2 | a few years [prep] [noun sg] | 20 |
|
| 3 | a few years of [noun sg] | 15 |
|
| 4 | a few years of [noun sg] | 15 |
|
