| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] for a while | 194 |
|
| 2 | [verb] it [adv] for a | 99 |
|
| 3 | [verb] it for a while | 39 |
|
| 4 | it [adv] for a while | 11 |
|
