| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [v-ing] a | 6238 |
|
| 2 | [v-ing] at a | 1472 |
|
| 3 | [conj] [v-ing] at | 1428 |
|
| 4 | [conj] at a | 759 |
|
