| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] a [adj] | 514 |
|
| 2 | at least a [adj] | 423 |
|
| 3 | at least a [adj] | 423 |
|
| 4 | at [adv] a [adj] | 263 |
|
| 5 | at [adv] a [num] | 146 |
|
| 6 | at [adv] a dozen | 55 |
|
| 7 | at [adv] a dozen | 55 |
|
| 8 | at [adv] a [det] | 49 |
|
| 9 | at [adv] a few | 45 |
|
| 10 | at [adv] a few | 45 |
|
| 11 | at [adv] a [num ord] | 42 |
|
| 12 | at [adv] a hundred | 39 |
|
| 13 | at [adv] a hundred | 39 |
|
| 14 | at [adv] a third | 30 |
|
| 15 | at [adv] a third | 30 |
|
| 16 | at once a [adj] | 23 |
|
| 17 | at once a [adj] | 23 |
|
| 18 | at [adv] a thousand | 19 |
|
| 19 | at [adv] a [adj -er] | 19 |
|
| 20 | at [adv] a thousand | 19 |
|
| 21 | at [adv] a partial | 16 |
|
| 22 | at [adv] a partial | 16 |
|
| 23 | at only a [adj] | 13 |
|
| 24 | at quite a [adj] | 13 |
|
| 25 | at only a [adj] | 13 |
|
| 26 | at quite a [adj] | 13 |
|
| 27 | at [adv] a good | 12 |
|
| 28 | at [adv] a good | 10 |
|
| 29 | at [adv] a far | 10 |
|
| 30 | at [adv] a further | 10 |
|
