| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [noun sg] of | 39413 |
|
| 2 | at the end of | 9363 |
|
| 3 | at the time of | 2792 |
|
| 4 | at the beginning of | 2227 |
|
| 5 | at the top of | 1552 |
|
| 6 | at the age of | 1442 |
|
| 7 | at the back of | 1162 |
|
| 8 | at the expense of | 1088 |
|
| 9 | at the start of | 1049 |
|
| 10 | at the bottom of | 1043 |
|
| 11 | at the heart of | 884 |
|
| 12 | at the university of | 796 |
|
| 13 | at the centre of | 748 |
|
| 14 | at the foot of | 585 |
|
| 15 | at the level of | 546 |
|
| 16 | at the head of | 491 |
|
| 17 | at the edge of | 372 |
|
| 18 | at the height of | 353 |
|
| 19 | at the side of | 341 |
|
| 20 | at the base of | 305 |
|
| 21 | at the thought of | 298 |
|
| 22 | at the turn of | 288 |
|
| 23 | at the front of | 276 |
|
| 24 | at the request of | 273 |
|
| 25 | at the sight of | 260 |
|
| 26 | at the rate of | 258 |
|
| 27 | at the point of | 244 |
|
| 28 | at the cost of | 235 |
|
| 29 | at the prospect of | 214 |
|
| 30 | at the forefront of | 205 |
|
