| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] a [noun sg] | 23568 |
|
| 2 | at a [noun sg] | 14548 |
|
| 3 | [subord] at [noun sg] | 507 |
|
| 4 | [subord] at a | 167 |
|
