| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] in a | 32605 |
|
| 2 | [v-ing] [verb] a | 5608 |
|
| 3 | [v-ing] in a | 4159 |
|
| 4 | [v-ing] [verb] in | 1660 |
|
