| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] a | 20914 |
|
| 2 | [prep] [noun sg] [v-ing] | 13253 |
|
| 3 | [noun sg] [v-ing] a | 6097 |
|
| 4 | [prep] [noun sg] a | 3535 |
|
