| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [v-ing] [prep] a | 1176 |
|
| 2 | of [v-ing] [prep] a | 1176 |
|
| 3 | of [v-ing] at [art] | 251 |
|
| 4 | [prep] [v-ing] at a | 211 |
|
| 5 | of [verb] at a | 46 |
|
| 6 | of [v-ing] at a | 43 |
|
