| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] a [noun sg] | 28650 |
|
| 2 | [noun] at [noun sg] | 17844 |
|
| 3 | at a [noun sg] | 14548 |
|
| 4 | [noun] at a | 9235 |
|
