| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a [adj] [noun] | 3109 |
|
| 2 | [verb] at a [adj] [noun sg] | 3002 |
|
| 3 | [verb] at a [adj] [noun] | 2614 |
|
| 4 | [verb] at a [adj] [noun] | 2447 |
|
| 5 | [vb pp] at a [adj] [noun] | 1311 |
|
| 6 | [verb] at an [adj] [noun] | 662 |
|
| 7 | [v-ing] at a [adj] [noun] | 562 |
|
| 8 | [verb] at a [adj -er] [noun] | 441 |
|
| 9 | [vb past] at a [adj] [noun] | 367 |
|
| 10 | [to-vb] at a [adj] [noun] | 319 |
|
| 11 | [verb] at a [adj] rate | 295 |
|
| 12 | [verb] at a [adj] rate | 295 |
|
| 13 | [verb] at a [adj] level | 271 |
|
| 14 | [verb] at a [adj] level | 271 |
|
| 15 | [vb -s] at a [adj] [noun] | 205 |
|
| 16 | look at a [adj] [noun] | 197 |
|
| 17 | [verb] at a early [noun] | 194 |
|
| 18 | [verb] at a [adj] stage | 186 |
|
| 19 | [verb] at a [adj] stage | 186 |
|
| 20 | [vb base] at a [adj] [noun] | 184 |
|
| 21 | [vb infin] at a [adj] [noun] | 161 |
|
| 22 | [verb] at a late [noun] | 156 |
|
| 23 | [verb] at a later [noun] | 149 |
|
| 24 | [verb] at a early [noun] | 144 |
|
| 25 | [verb] at a [adj] time | 136 |
|
| 26 | [verb] at a [adj] time | 136 |
|
| 27 | arrive at a [adj] [noun] | 135 |
|
| 28 | [verb] at a high [noun] | 132 |
|
| 29 | [verb] at a [adj] date | 130 |
|
| 30 | [verb] at a [adj] date | 130 |
|
