| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] [noun] [prep] [art] | 203 |
|
| 2 | at [adv] [noun] [prep] [art] | 203 |
|
| 3 | [prep] about [noun] [prep] [art] | 114 |
|
| 4 | at about [noun] [prep] [art] | 13 |
|
| 5 | at about [noun] [prep] [art] | 13 |
|
