| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a fast [noun sg] | 36 |
|
| 2 | [verb] at a faster [noun sg] | 26 |
|
| 3 | [verb] at a fast rate | 21 |
|
| 4 | [v-ing] at a fast [noun sg] | 11 |
|
| 5 | [vb pp] at a fast [noun sg] | 10 |
|
| 6 | [verb] at a fast [noun sg] | 10 |
|
| 7 | [verb] at a fast pace | 9 |
|
| 8 | grow at a fast [noun sg] | 5 |
|
