| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [noun sg] [prep] | 37603 |
|
| 2 | at a [noun] [prep] | 5162 |
|
| 3 | at a [noun sg] [prep] | 5112 |
|
| 4 | at [noun] [noun sg] [prep] | 2433 |
|
| 5 | at a [noun] [noun sg] | 2402 |
|
