| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adv] at a time | 31 |
|
| 2 | a little [prep] a time | 31 |
|
| 3 | a [adv] [prep] a time | 31 |
|
| 4 | a [adv] [prep] a time | 31 |
|
| 5 | a little [prep] a time | 31 |
|
