| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [prep] a [det] year | 12 |
|
| 2 | [vb past] [adv prt] [prep] a [det] year | 7 |
|
| 3 | [vb past] [adv] [prep] a [det] year | 5 |
|
| 4 | [vb past] [verb] [prep] a [det] year | 5 |
|
| 5 | [vb past] [prep] [noun] a [det] year | 7 |
|
