| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a [det] [noun] time | 10 |
|
| 2 | [verb] [prep] [art] [det] year time | 5 |
|
| 3 | [verb] [prep] a [adj] year time | 5 |
|
| 4 | [verb] [prep] a [det] year [noun] | 5 |
|
