| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a | 27362 |
|
| 2 | as [v-ing] [prep] | 1569 |
|
| 3 | as [v-ing] a | 972 |
|
| 4 | as [prep] a | 678 |
|
