| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] [prep] a time | 26 |
|
| 2 | [adv] [adv] [prep] a time | 21 |
|
| 3 | [adv] [adv] for a time | 11 |
|
| 4 | [adv] [adv] at a time | 9 |
|
| 5 | more [adv] [prep] a time | 5 |
|
| 6 | more [adv] [prep] a time | 5 |
|
