| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [verb] [adv] for a | 229 |
|
| 2 | [verb] [adv] for a while | 194 |
|
| 3 | [conj] [verb] for a while | 60 |
|
| 4 | [conj] [adv] for a while | 8 |
|
