| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a | 27362 |
|
| 2 | after [v-ing] [prep] | 1977 |
|
| 3 | after [v-ing] a | 1056 |
|
| 4 | after [prep] a | 56 |
|
