| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [v-ing] at an [adj] [noun sg] | 11 |
|
| 2 | [adv] [v-ing] at an [adj] [noun sg] | 9 |
|
| 3 | [adv] [v-ing] at an [adj] rate | 8 |
|
