| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] a [noun sg] | 21494 |
|
| 2 | at a [noun sg] | 14548 |
|
| 3 | [pron] at [noun sg] | 1711 |
|
| 4 | [pron] at a | 772 |
|
