| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at two [noun pl] | 644 |
|
| 2 | at [num] marks | 428 |
|
| 3 | at [num] pounds | 214 |
|
| 4 | at [num] years | 207 |
|
| 5 | at [num] months | 179 |
|
| 6 | at three [noun pl] | 170 |
|
| 7 | at [num] weeks | 164 |
|
| 8 | at [num] feet | 149 |
|
| 9 | at [num] hours | 140 |
|
| 10 | at [num] levels | 132 |
|
| 11 | at [num] minutes | 127 |
|
| 12 | at [num] miles | 126 |
|
| 13 | at six [noun pl] | 108 |
|
| 14 | at four [noun pl] | 94 |
|
| 15 | at [num] metres | 79 |
|
| 16 | at five [noun pl] | 73 |
|
| 17 | at ten [noun pl] | 71 |
|
| 18 | at [num] degrees | 70 |
|
| 19 | at [num] hrs | 60 |
|
| 20 | at [num] times | 56 |
|
| 21 | at fifty [noun pl] | 54 |
|
| 22 | at eighty [noun pl] | 48 |
|
| 23 | at 10 [noun pl] | 45 |
|
| 24 | at [num] days | 44 |
|
| 25 | at twenty [noun pl] | 43 |
|
| 26 | at [num] prices | 42 |
|
| 27 | at [num] knots | 41 |
|
| 28 | at ninety [noun pl] | 39 |
|
| 29 | at 1990 [noun pl] | 38 |
|
| 30 | at [num] sites | 36 |
|
