| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [v-ing] a | 9802 |
|
| 2 | [noun] at a | 9235 |
|
| 3 | [noun] [v-ing] at | 3696 |
|
| 4 | [v-ing] at a | 1472 |
|
