| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] time | 3385 |
|
| 2 | [prep] a [adj] years | 820 |
|
| 3 | [prep] [adj] years time | 123 |
|
| 4 | a [adj] years time | 22 |
|
