| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [num] [noun sg] | 267 |
|
| 2 | at a [num] [noun sg] | 34 |
|
| 3 | at [art] one [noun sg] | 28 |
|
| 4 | at [art] [num] level | 23 |
|
| 5 | at [art] [num] election | 22 |
|
| 6 | at [art] three [noun sg] | 16 |
|
| 7 | at [art] [num] month | 12 |
|
| 8 | at [art] [num] conference | 12 |
|
| 9 | at [art] two [noun sg] | 11 |
|
| 10 | at [art] [num] time | 11 |
|
| 11 | at [art] [num] day | 10 |
|
| 12 | at [art] [num] world | 10 |
|
| 13 | at [art] 1989 [noun sg] | 9 |
|
| 14 | at [art] 1981 [noun sg] | 9 |
|
| 15 | at [art] 1986 [noun sg] | 9 |
|
| 16 | at [art] [num] congress | 9 |
|
| 17 | at [art] 1990 [noun sg] | 9 |
|
| 18 | at [art] [num] census | 9 |
|
| 19 | at [art] 1987 [noun sg] | 9 |
|
| 20 | at [art] 1991 [noun sg] | 8 |
|
| 21 | at [art] [num] desk | 8 |
|
| 22 | at [art] 5.40 [noun sg] | 8 |
|
| 23 | at [art] [num] dilution | 6 |
|
| 24 | at [art] [num] party | 6 |
|
| 25 | at [art] [num] meeting | 6 |
|
| 26 | at [art] 1983 [noun sg] | 6 |
|
| 27 | at [art] 1979 [noun sg] | 5 |
|
| 28 | at [art] 1984 [noun sg] | 5 |
|
| 29 | at [art] 1988 [noun sg] | 5 |
|
| 30 | at [art] [num] club | 5 |
|
