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