| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at an [adj] [noun sg] | 592 |
|
| 2 | [vb pp] at an [adj] [noun sg] | 228 |
|
| 3 | [verb] at an early [noun sg] | 144 |
|
| 4 | [verb] at an [adj] rate | 110 |
|
| 5 | [v-ing] at an [adj] [noun sg] | 107 |
|
| 6 | [verb] at an [adj] stage | 95 |
|
| 7 | [vb past] at an [adj] [noun sg] | 86 |
|
| 8 | [to-vb] at an [adj] [noun sg] | 74 |
|
| 9 | [vb -s] at an [adj] [noun sg] | 42 |
|
| 10 | [verb] at an [adj] age | 38 |
|
| 11 | [verb] at an annual [noun sg] | 36 |
|
| 12 | [vb base] at an [adj] [noun sg] | 30 |
|
| 13 | arrive at an [adj] [noun sg] | 28 |
|
| 14 | [verb] at an [adj] level | 27 |
|
| 15 | [verb] at an alarming [noun sg] | 27 |
|
| 16 | grow at an [adj] [noun sg] | 26 |
|
| 17 | [vb infin] at an [adj] [noun sg] | 25 |
|
| 18 | look at an [adj] [noun sg] | 22 |
|
| 19 | [verb] at an [adj] pace | 21 |
|
| 20 | [verb] at an appropriate [noun sg] | 16 |
|
| 21 | [verb] at an [adj] time | 16 |
|
| 22 | [verb] at an average [noun sg] | 15 |
|
| 23 | [verb] at an [adj] meeting | 15 |
|
| 24 | [verb] at an open [noun sg] | 14 |
|
| 25 | run at an [adj] [noun sg] | 13 |
|
| 26 | [verb] at an [adj] date | 13 |
|
| 27 | speak at an [adj] [noun sg] | 13 |
|
| 28 | [verb] at an [adj] cost | 12 |
|
| 29 | [verb] at an [adj] angle | 12 |
|
| 30 | rise at an [adj] [noun sg] | 12 |
|
