| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a certain time | 90 |
|
| 2 | [prep] a certain time | 90 |
|
| 3 | [prep] [art] certain time | 90 |
|
| 4 | [prep] [art] certain time | 90 |
|
| 5 | at [art] certain time | 33 |
|
| 6 | at [art] certain time | 33 |
|
| 7 | within [art] certain time | 12 |
|
| 8 | for [art] certain time | 12 |
|
| 9 | for [art] certain time | 12 |
|
| 10 | within [art] certain time | 12 |
|
| 11 | after [art] certain time | 10 |
|
| 12 | after [art] certain time | 10 |
|
| 13 | by [art] certain time | 6 |
|
| 14 | by [art] certain time | 6 |
|
| 15 | in [art] certain time | 5 |
|
| 16 | in [art] certain time | 5 |
|
| 17 | to [art] certain time | 5 |
|
| 18 | to [art] certain time | 5 |
|
