| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a few years [pers pn] [vb past] | 9 |
|
| 2 | [prep] a [det] years [pers pn] had | 6 |
|
| 3 | within a [det] years [pers pn] [vb past] | 5 |
|
