| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [adv] a | 1592 |
|
| 2 | [noun] [prep] years [adv] | 354 |
|
| 3 | [prep] years [adv] a | 5 |
|
| 4 | [noun] [prep] years a | 5 |
|
